Elektronikus összetevők

for BTC Miner Machine,Installed on the main power supply of the power 24Pin, the power supply can be started without the main board.
It is used for the power test of the water cooling system.
The prevention assembly is not in place to cause the leakage of the main plate.
Test the power supply, can quickly detect whether the power hardware failure.
If the motherboard not have the 24Pin interface, plug in the adapter, you can use the power.
Colour: Black
Material: nylon
Size: 54 x 24mm
Package Contents:
2 x 24Pin Power Adapter
/
5 x 24Pin Power Adapter
/
10 x 24Pin Power Adapter
/
1 x 24Pin Power Adapter
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

for BTC Miner Machine,Installed on the main power supply of the power 24Pin, the power supply can be started without the main board.
It is used for the power test of the water cooling system.
The prevention assembly is not in place to cause the leakage of the main plate.
Test the power supply, can quickly detect whether the power hardware failure.
If the motherboard not have the 24Pin interface, plug in the adapter, you can use the power.
Colour: Black
Material: nylon
Size: 54 x 24mm
Package Contents:
2 x 24Pin Power Adapter
/
5 x 24Pin Power Adapter
/
10 x 24Pin Power Adapter
/
1 x 24Pin Power Adapter
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

for BTC Miner Machine,Installed on the main power supply of the power 24Pin, the power supply can be started without the main board.
It is used for the power test of the water cooling system.
The prevention assembly is not in place to cause the leakage of the main plate.
Test the power supply, can quickly detect whether the power hardware failure.
If the motherboard not have the 24Pin interface, plug in the adapter, you can use the power.
Colour: Black
Material: nylon
Size: 54 x 24mm
Package Contents:
2 x 24Pin Power Adapter
/
5 x 24Pin Power Adapter
/
10 x 24Pin Power Adapter
/
1 x 24Pin Power Adapter
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

for BTC Miner Machine,Installed on the main power supply of the power 24Pin, the power supply can be started without the main board.
It is used for the power test of the water cooling system.
The prevention assembly is not in place to cause the leakage of the main plate.
Test the power supply, can quickly detect whether the power hardware failure.
If the motherboard not have the 24Pin interface, plug in the adapter, you can use the power.
Colour: Black
Material: nylon
Size: 54 x 24mm
Package Contents:
2 x 24Pin Power Adapter
/
5 x 24Pin Power Adapter
/
10 x 24Pin Power Adapter
/
1 x 24Pin Power Adapter
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Overcharge and discharge protection to prevent overcharge and discharge of the battery, Overcurrent protection to prevent abnormal high current of battery.
Balance protection, battery voltage balance, make battery life longer
Stable heat dissipation, stable heat dissipation of the aluminum substrate, safer
TVS safety protection absorbs anti-high voltage, reduces MOS tube breakdown, ultra-low internal resistance MOS
Suitable for most electric tools on the market, electric scooters, electric bicycles, electric tricycles, electric motorcycles, electric vehicles, electric tools, etc.
size:56 x 86 x 14mm
Material:PCB
colour:White green
Package Contents:
1 x Lithium Battery Charger Protection Board
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

TPA3221 is a high-power class D amplifier that can achieve high efficiency in full power, idle and standby states. The device uses closed-loop feedback with a bandwidth of up to 100kHz to provide low distortion in the audio frequency band and achieve excellent quality. The device operates with AD or low idle current HEAD (high-efficiency AD mode) modulation and can provide 2 x 105W power for a 4 ohm load or 1 x 208W power for a 2 ohm load.
The main filter electrolytic capacitor adopts the imported famous brand Erkang with a capacity of 2200UF/35V*4 to ensure strong and continuous power support.
High-precision chip resistors are selected for the resistors to ensure a good signal-to-noise ratio of the whole machine.
Adopt special magnetic ring inductor for audio to ensure the sound is clear and powerful.
Basic performance parameters:
Wide 7-V to 30-V Supply Voltage Operation
Stereo (2 x BTL) and Mono (1 x PBTL) Operation
Output Power at 10% THD N
105-W Stereo into 4 ohm in BTL Configuration
112-W Stereo into 3 ohm in BTL Configuration
208-W Mono into 2 ohm in PBTL Configuration
Output Power at 1% THD N
88-W Stereo into 4 ohm in BTL Configuration
100-W Stereo into 3 ohm in BTL Configuration
170-W Mono into 2 ohm in PBTL Configuration
Closed-Loop Feedback Design
Signal Bandwidth up to 100 kHz for High-Frequency Content From HD Sources
0.02% THD N at 1 W into 4 ohm
60-dB PSRR (BTL, No Input Signal)
less than 75-μV Output Noise (A-Weighted)
more than 108-dB SNR (A-Weighted)
AD or HEAD Modulation Schemes
Low-Power Operating Modes
Standby Modes: Mute and less than 1 mA Shutdown
Low Idle-Current HEAD Modulation Scheme
Single-Channel BTL Operation
Multiple Input Options to Simplify Pre-Amp Design
Differential or Single-Ended Analog Inputs
Selectable Gains: 18 dB, 24 dB, 30 dB, 34 dB
Integrated Protection: Undervoltage, Overvoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning andShutdown, and DC Speaker Protection
Colour: as shown
Material: abs
Size: 103 x 78MM
Package Contents:
1 x power amplifier board
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Easy to carry, small size
Strong cooling, not hot for a long time
Product features: three-speed adjustment
Support stretch width: 66-96mm
Applicable mobile phone size: 4.5-7.5 inch
Battery capacity: 400MAH
Colour: silver
Material: ABS
Size: 8 x 5 x 1.5cm
Package Contents:
1 x Phone Cooler
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Surround sound effect
Bluetooth 5.0
Ergonomic design
led lights
Support card MP3 mode
Speaker: 10MM
Impedance: 32 ohm
Sensitivity: 105 /- 3 dB
Frequency range: 20-2000 HZ
Rated power: 20 mW
Description: Foldable, retractable, TF card, deer ears can flash in one color or seven colors
Bluetooth version: 5.0
Battery: 110 mAH lithium battery
Transmission distance: 10 meters
Use time: 6-7 hours
Standby time: 72 hours
Charging time: 1.5 hours
Colour: Red Black / Yellow Black / Purple Black / Blue Yellow
Material: ABS
Size: about 160 x 150 x 30mm
Package Contents:
1 x earphone
1 x data line
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Model: M2
Headphone Type: Headphones
Plug diameter: 3.5mm
Plug Type: USB
Frequency response range: 20Hz-20KHz (Hz)
Impedance: 32 ( ohm)
Sensitivity: 102 /-3(dB)
Distortion rate: 5% @1KHZ (% )
Horn diameter: 50 (Φmm)
Colour: black
Material: PVC
Size: Cable length 2 meter
Package Contents:
1 x headphone
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Made of soft comfortable leather, durable and flexible, for hours of comfortable listening.
Perfect replacement for you lost or broken ear cushions. It is snap easily into your headphone.
The inner sponge foam material makes your wearing very cozy and comfortable. With it, you can enjoy your stereo music to the fullest.
Colour: black
Material: sponge
Size: 9x7x2cm
Package Contents:
2 * Ear Cushion
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

About the Principle of balance: This module is adjacent to the differential voltage balance, and the adjacent battery voltage difference reaches 0.1V or more. The internal trigger balance is working until the adjacent battery voltage difference stops within 0.03V. There is an adjacent differential voltage when charging and discharging on the battery pack. Trigger balance, the battery pack voltage error will be pulled back to the perfect value, reducing battery maintenance costs.
Balanced BMS Features: High-precision energy transfer equalization, exclusive balanced IC, high current 1.3A energy transfer battery voltage balancer, significantly balancing battery voltage, improving overall battery pack efficiency.
Operating voltage range: 3.0-4.5V, Li-ion/Lipo/Lifepo4/18650 lithium battery universal.
Balance current:
Adjacent voltage difference is 0.1V or more (current is about 0.5-0.7A);
Adjacent voltage difference is above 0.2V (maximum balance current is 1.3A);
The smaller the differential voltage , the smaller the balance current.
About Connect:
B-, the total negative pole of the battery pack (the negative pole of the first battery)
B1, the positive electrode of the first battery
B2, the positive electrode of the second battery
B3, the positive electrode of the third battery
And so on..........
About the Indicator:
1.The indicator is lighting,it mean the Active balancing work for between the batteries.
2.The indicator is no lit,the equalization have been completed or not reach for start-up balancing.
3.The indicator is flash,the equalization not work.
Colour: green
Material: PCB
Size: 22x45x4mm
Package Contents:
1 * Equalizer Balancer
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

This is an RTL-SDR software defined radio receiver with RTL2832U ADC chip, 1PPM TCXO, SMA F connector, R820T2 tuner and case with passive cooling.
Tunes from 500 kHz to 1.7 GHz with up to 3.2 MHz (2.4 MHz stable) of instantaneous bandwidth.
(HF mode works in direct sampling mode).
Perfect for use as a computer based radio scanner with free software like SDR#, HDSDR, SDR-Radio, Linrad, GQRX or SDR Press on Android. Works on Windows, OSX, Linux, Android and embedded Linux computers like the Raspberry Pi.
Great for many applications including general radio scanning, air traffic control, public safety radio,ADS-B aircraft radar, AIS boat radar, ACARS, trunked radio, P25/MotoTRBO digital voice, POCSAG, weather balloons, APRS, NOAA APT weather satellites, Meteor M2 satellites, radio astronomy, meteor scatter monitoring, DAB, or for use as a low cost panadapter with a traditional ham radio.
This model has several improvements over other brands. It uses the improved R820T2 tuner, comes with
a 1PPM TCXO (no drift and accurate tuning with a 2 PPM initial offset and 1 PPM temperature drift), improved component tolerances, redesigned lower noise PCB, cooling improvements, extra ESD protection and an SMA F connector.
It also comes with a software activatable bias-tee circuit for powering external devices such as LNA's and active antennas.
Quantity:1Pc
colour:Silver
Material:metal
size:8.8x2.3x1.5cm
Package Contents:
1*Software Defined Radio
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Colour:black
Material:plastic
Size: 55 x 21 x 15mm
Package Contents:
10 * Operational Amplifier
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

VCC: power supply interface, can be connected to 3.3V/5V
GND: ground
A/D: Analog/Digital
Working voltage: 3.3V/5V
Module size: 40mmx32mm
Connection method: alligator clip
Sound sensor, easy operation, high precision, programmable.
The sound sensor module acts as a microphone (microphone). It is used to receive sound waves and display the vibration image of the sound, but it cannot measure the intensity of the noise. Output the corresponding voltage signal according to the intensity of the sound.
The modules are connected by alligator clips, without the cumbersome Dupont line, it is faster to learn and more convenient to use.
Colour: as shown
Material: ABS
Package Contents:
1 * Sound sensor module
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Characteristics:1.GHz wireless presenter pen, with a bright red light to easily see most of the backgrounds and the projective surface
2. With page up and down button, full sn, black sn, convenient to control your slide show.
3. With a USB receiver next to the battery box, plug and play, powered by 1 x AAA battery (not included).
4 approximately 15 m / 59in effective wireless remote communication range, free for you to walk and interact with your ence.
5. Supports browsing types of Excel, PowerPoint, web page, Ebooks, etc.
Descriptions:
1. Ergonomically ultra-thin design and compact size that gives you a comfortable feeling of use.
2. Great assistant for teachers, students and other presenters, as well as a gift considered Perfect.
Specification:
Material: ABS plastic
Radio frequency: 2.4 GHz-2.483 GHz
Power supply: 1 x AAA battery (not included)
Effective Control Distance: approx. 15 m / 59in
Output Power: Less than 5mW
Current: 30 mA (max.)
colour:black
size:11x4CM
Package Contents:
1 x transmitter
1 x USB receiver
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Advanced KTV, stage microphone replacement upgrade microphone core, vocal reproduction is thorough, accurate directionality, wide frequency range, clear midrange, high-pitched sound, thick bass, excessive natural, high-grade appearance, exquisite workmanship;
A professional-grade vocal microphone cartridge with wide step width, high-pitched sound, clear mid-range, deep bass, natural sound quality and high sensitivity.
Whether it is wired or wireless, it has a fidelity and vocal sound.
Super filtering current noise, good shockproof effect, large dynamic range, accurate directivity and less distortion.
As everyone knows, the microphone is good or bad, and the microphone core plays a decisive role.
Why is it cheap to scream when a cheap microphone sings?
Mainly due to the low-grade microphone, the use of inferior microphone core, poor directivity, sharp peaks and valleys, the sound from the speaker and the microphone form a resonance point and is constantly amplified by the sound.
Our enthusiast-grade microphone core is specially designed to have a wide frequency response curve and a high frequency attenuation. This helps to suppress the acoustic feedback, thereby reducing the high frequency howling and protecting the speaker system while also pleasing the human ear.
Product performance characteristics: clear and clean sound, good sensitivity, thorough vocal reproduction, clear and bright treble, thick and powerful bass, anti-howling (the top choice for singing).
Material:ABS metal
colour:Black Gold
Package Contents:
1 * Microphone Cartridge
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Product Name : Battery Case;Material : Plastic, Metal
Body Size : 8.1 x 7.5 x 2cm/3.2 inch x 3 inch x 0.8 inch(LxWxH)
Cable Length( Each ) : 15cm/6 inch
Battery Type : 4 x 18650 14.8V;Color : Black
Net Weight : 96g
This battery box holder with wire connector, fit for 4 x 18650 14.8V batteries.
With spring clip design, you can easily to put the battery in it.
Battery is not included here.
Package Content : 4 x 1.5V Battery Case Holder
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Compatible Brand: Blackberry,LG,Palm,Samsung,HTC,Panasonic,Nokia,SONY,Motorola
Features: Reversible,2 in 1
Type: Type C
Connector: Type C to Type C Cable
Function 1: Type c to Type C Male Cable For Microsoft Lumia 950/950 XL
Function 2: Type c to Type C Male to Male cable
Function 3: usb c to usb c Male to Male cable
Function 4: for Apple MacBook 2017 Macbook Pro Chromebook
Function 5: For Google Nexus 5X/6P, Pixel 2/2 XL, Pixel/Pixel XL
Function 6: For Samsung Galaxy S9/S8/S8 Plus For Nintendo Switch PD fast charging
Function 7: Fast Data sync Charging
Product Name: Type c to Type-c fast charge data cable
Cable diameter: 3.5mm (OD)
Application function: PD protocol (for fast charge computer and mobile phone charging)
Cable outer cover: TPE
Current peak: 3A
Structure core: 6 core galvanized copper
Transmission parameters: 480Mbps
Cable specifications: 2 m
Cable interface: Type-c
Product packaging: delicate color bag.
Applicable fast charge: PD18W to 65W power adapter connection charging
colour: white
Material: plastic
Package Contents:
1 * Charger Cable
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Bluetooth 5.0, support one-key TWS pairing, support AUX to insert TWS into the box and keep the line, power on, the default volume
TX, RX, GND: TTL serial port configuration 9600, N, 8, 1
At 16V4A, the maximum output power is 30W; At 12V4A, the maximum output power is 20W
8-22V power supply, with reverse connection protection, support laptop power adapter power supply
Boards and devices, excellent workmanship, sufficient materials, reliable quality
M and M- are the positive and negative of the microphone
Material:PCB
colour:Green
Package Contents:
2 x Bluetooth 5.0 power amplifier board
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Type: Vacuum Cleaner Parts
Vacuum Part Type: Replacement Batteries
Item Type: Battery Protection Board
Compatible with: for Dyson V8 Vacuum Cleaner
Rated Voltage: 21.6V
High quality battery protection board
size:14x4x2cm
Material:PCB
colour:Green
Package Contents:
1 x Protection Board
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Voice Air Mouse and Voice TV remote,Power Key Can support IR learning.
2.4G transmission up to 15m.
Applicable to: Smart TV, IPTV, Networked Set-top Box, Mini PC, Android TV Box, HTPLC, PCTV.
USB receiver:
Transmission rate: 1Mbps
Operating frequency: 2.4GHz - 2.4835GHz
Output power: -18dBm - 0dBm
Function: HD compatible device, USB o microphone device
Controller:
Transmission rate: 1Mbps
Operating frequency: 2.4GHz - 2.4835GHz
Output power: -18dBm - 0dBm
Function: 2.4G voice remote control
Material:PC
colour:black
Package Contents:
1 * Air Mouse Remote Control
1 * USB Receiver
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

E Type Flash cold shoe bracket, Swivel light stand mount with Umbrella holder.
Universal metal cold shoe mount on top to mount your flash onto bracket.Work on monitor,ring light,Nikon Canon speedlite flash,trigger,magic arm,mic and any accessories that has a camera type of shoe.
A hole with locking screw in middle specially designed for holding umbrella.
Easy Adjustment. This Flash bracket is with 180 degree vertical and 360 degree horizontal adjustment to allow to position the umbrella and flash in different angle.
Comes with 1/4 inch to 3/8 inch screw adapter to attach it to a tripod or light stand or any camera rigs that with 1/4 inch -20 or 3/8 inch -16 male thread.
Flash Bracket Light Stand Bracket Umbrella Holder for Camera DSLR Flashes Studio Light LED Light
This flash speedlite mount helps mount your speedlight from Canon, Nikon, Pentax,Olympus and other DSLR for strobist style work to a flash stand or tripod.Universal type allows to mount on any standard light stands.
Suitable for: All hot-shoe flashes except for Sony and for Minolta Brands
Item weight: 294g / 10.2oz
Colour: Black
material: metal
Size: 10.5 x 7 x 3cm
Package Contents:
4pcs x E-type flash cold boot bracket
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Dedicated Bayonet Mount Type
Premium-grade high-impact plastic
Lens hoods extend and shade the end of lens preventing unwanted light straying into the lens.
Since the end of the lens is extended, you get the benefit of some extra protection from accidental impact.
Each dedicated lens hood was specifically created to match the specific focal length of the lens it was designed for.
Photographers can easily attach the lens hood on the dedicated bayonet mount, and after usage mount the lens hood on the lens in reverse for a compact storage solution.
Color:black
Material: Plastic
model:ET-65III
Apply to Canon EF 85, 100mm, 135mm, 100-300mm, 70-300mm
Package includes:
1 x Lens Hood
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

100% brand new and high quality
Brand new and in high quality. You can easily convert your existing cables to your different needs.
You can also easily extend/lenghten your cable by connecting your cables with this USB connector.
Practical and durable. Small, light in weight and very convenient.Brand new and in high quality.
Type: Coupling Connector
Transmission Speed: USB 3.0
Connector 1: USB 3.0 Type A Female
Connector 2: USB 3.0 Type A Female
colour:black
Material:ABS
size:4.4*1.7*1CM
Package Contents:
2 x USB 3.0 Type A Female to Female Adapter
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Great for rc car to replace the old one.
Not suitable for children under 6 years old.
Product Name : Battery Case Holder
For : 8 x AA Battery(Battery is not included here)
Connector Type : 12V Battery Snap Connector
Size : 57 x 60 x 30mm/2.3" x 2.4" x 1.2"(L*W*H)
Material : Plastic
Color : Black
Weight : 46g
Package Content : 2 x Battery Case Holder
Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is /-1-3 cm.

RF chip: CC2530F256 CC2591
Carrier frequency: 2.4GHz
Transmit power: 2. 5mW
Communication distance: 800 meters
Chip Description: The CC2530F256 is a true system-on-a-chip (SoC) solution for 2.4-GHz lEEE 802.15.4, ZigBee and RF4CE applications. It builds powerful network nodes at a very low total material cost; it provides a powerful and complete ZigBee solution.
Name: Wireless PA Module
Z- 0002 ZigBee wireless module basic parameters:
ZigBee Wireless:
1. Wireless standard: 802.15.4 protocol
2. Frequency range: 2.405GHz~ 2.480GHz
3. Transmitting power: programmable up to 21dBm.
4. ZigBee protocol: ZigBee protocol stack (Z-Stack)
5. Receive sensitivity: -97dBm@250kbps
6. Antenna: 2.4G antenna with external SMA interface
7. Transmission distance: open visual distance up to 800m (PA maximum transmission power 21dBm)
PCB board:
1. Number of layers: 4 layers
2. Size: 36.0 x 25.6 mm PCB board
3. Interface: Standard 2.54mm pin header
Module hardware parameters:
1. Working voltage: 2.0V- -3.6V
2. Working current: emission current 30mA@21dBm; receiving current 26mA (average current)
3. Working temperature: -40 ° C - - 85 C (industrial grade)
4. Storage temperature: -40C- -125°C
5. Transmission rate: wireless transmission rate up to 250kbps
6. Resources: All I/O resources of CC2530 are drawn out, which is convenient for secondary development.
Colour: blue
Material: PCB
Package Contents:
1 x wireless PA module
1 x antenna
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

The potentiometer adjusts the volume with a switch for easy control of the volume, making it Perfect for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna.
The copper DC connector is used to withstand high current and no heat.
Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality.
Free DC head lead, compatible with the input power interface of this product, even if you don't have a DC head adapter or battery, it can be easily wired.
5.0 Bluetooth version, the transmission efficiency is higher, the transmission distance is farther.
Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.
Question and answer:
1. How to choose a power supply?
The power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.
It is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality.
2. How to choose a speaker?
Commonly used speakers are generally 8 ohms, can not distinguish between positive and negative, the effect is the same, 4 ohm speakers can also be used.
Colour:black
Material:plastic
Size:55*38*17mm
Package Contents:
1 * amplifier board(with DC cable)
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

The product can be fixed on the shoulder strap of the schoolbag, installed with a mobile phone or sports camera for shooting. Adjustable angle
Suitable for 4-6 inch mobile phone installation, GOPRO series Xiaoyi sjcam DJI and other brand sports camera installation and use
Can be fixed to various similar objects such as schoolbag straps
Designed with 360 degree rotation, easy to adjust the installation angle
Applicable scene: backpack, hat
Colour:black
Material:plastic
Size:about 9 x 4 x 4cm
Package Contents:
1 * fixed clip
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Item Type: Ear Pads
Size: 90 x 70mm
Model Number: for BOSE QC35 QC25 QC2
color:Beige-yellow
Material:Sponge
size:9 x 4 x 2cm
Package Contents:
1 pair x headphone cover
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

1.COMPATIBILITY: Universal audio cable connects and microphones toPhone.
2.MUST HAVE ADAPTER: This 3.5mm audio cable has TRRS to TRS stereo output connectors, perfect for your audio needs.
Model: 3.5mm
colour:black
material:metal
size:Elongation about 50cm
Package Contents:
2 x 3.5mm Microphone cable
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Circuit 40Hz/20kHz
Max Power: 300W
Impedance: 4~8ohm
Intersect Frequency: 40Hz/20kHz
Size: 151*135mm
Mounting Diagonal Hole Distance: 190mm
Mounting Adjacent Hole Distance: 143mm,127mm
Recommend Speaker Used Range: 12 inch below speaker
Circuit: 40Hz/20kHz
Color: Random (green or blue)
Material: metal Plastic
Note: Random color, don't accept the specified color.
Package Included:
2 * 300W 3 Way Speaker Frequency Divider Loudspeaker Crossover Filter Circuit 40Hz/20kHz
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

High performance USB 3.0 extension cable extends the connection between a computer or Windows table and both USB 3.0 and USB 2.0 peripherals including camera, mouse, keyboards, PC, Notebook, Laptop, mounted TV, PS4 or USB hubs etc. Excellent for extending USB ports on desktop computers with rear ports.
90 Degrees recurved bend adapter to avoid bending cables, data transfer sync charger lead backwards compatibility with USB 1.0 / USB 1.1 / USB 2.0 / USB 3.0 .
Enjoy SuperSpeed USB 3.0 data transfer rate at up to 5 Gbps, 10x faster than USB 2.0. Upgrade to Super Fast Speed USB 3.0 and future-proof your data transfer rate while maintain backwards compatibility with your existing USB 2.0 devices .
The combination of the USB 3.0 type A connectors, foil & braid shielding provides superior cable performance, provides protection against noise from electromagnetic and radio-frequency signals and error-free data transmission.
Male A connection lead plugs into your computer and the female A connects to the cable you need extended. USB 3.0 repeater cable engineered with molded strain relief connectors for durability and grip treads for easy plugging , playing and unplugging.
Connector 1: USB 3.0 Type A Male , Left and Right Angled , 90 Degrees recurved bend
Connector 2: USB 3.0 Type A Female
Cable Rating: SuperSpeed USB 3.0 up to 5 Gbps data transfer rate
Bi-directional data transfer supported
Cable Length ( include end connectors ): about 20CM
Backwards compatible with USB 1.0 / USB 1.1 / USB 2.0 / USB 3.0
color: blue
material: plastic
Package Contents:
1x USB 3.0 Extension Cable Right Angle 90 Degree Adapter
1x USB 3.0 Extension Cable Left Angle 90 Degree Adapter
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Keep Your Mic Stable: the mic stand adapter is made of aluminum alloy, coated with frosted black paint, reliable and lasting, sturdy and firm, not easy to rust or be corrupted, also hard to fade, applicable for a long time, helpful for you to install the microphone stand, holding the mic stably
4 Kinds of Different Adapters: the mic stand thread adapters available in 4 pieces 5/8 female to 3/8 male, 4 pieces 3/8 female to 5/8 male, 4 pieces 5/8 female to 1/4 male and 4 pieces 1/4 female to 5/8 male, can work well with many types of mic stands, saving your time and energy
Fits for Most Mic Stands: the microphone stand adapter works well with most types of mic stands, mic clips, camera stands, recorder stands and other same thread accessories; 4 kinds of adapters with different threads allow for a wider range of scenarios, bringing you a nice experience
Non Slip Design for Easy Grip: the microphone tripod adapter has a non slip and knurled surface, deep thread without burr, to provide a reliable grip; With clear internal thread, it is convenient to use, stable and tight fit to stand
Slotted Thread on The Bottom: the 5/8 male to 3/8 female and 5/8 male to 1/4 female screw adapter for microphone stand have a slot on their bottoms, allowing easy installation and removal; And they are lightweight and portable
Colour:black
Material:Metal
Package Contents:
4 x 5/8 Female to 3/8 Male mic cable adapters
4 x 3/8 Female to 5/8 Male mic cable adapters
4 x 5/8 Female to 1/4 Male mic cable adapters
4 x 1/4 Female to 5/8 Male mic cable adapters
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Features:
1.The Newest Bluetooth 5.0 Version: Compliant to version 5.0 specifications, backwards compatible to Bluetooth 4.2/4.1/4.0/3.0/2.0/1.0.
2.Supports NFC : Built-in chip,you can directly connect with the NFC mobile phone or other support NFC bluetooth device by Contact this receiver
3.Stream Music on 2 Speakers Simutaneously: With both 3.5mm and 2RCA connection options, you can enjoy music Wirelessly on 2 speakers simulteneously.
4.Support dual o port to connect:Come With both 3.5mm and 2RCA o port, Suitable for more devices (3.5mm cable and 2RCA cable included).
5.Long-Range Wireless Connection:
The wireless Bluetooth adapter supports the connection up to 10 meters/33 feet, controlling the music playing in a long distance.
6.Support auto TURN ON/OFF:
Using the charger cable connect with your car/other power, When Start the car or its have power, It will auto turn on,and Automatically connect to the device you last connected to. When the car turned off, its will auto turn off.
Wireless Type: NFC
Wireless Type: Bluetooth
Sound Track: Double
High Definition Support: None
WIFI Standard: None
Content: O
Interface: 3.5mm
Model Number: B11
Support AAC: Yes
Support Memory Card: No
Support Apt-x: No
Feature: None
Note: Dont support usb output
Feature 1: Support 3.5mm /RCA /NFC connect
Colour: Black
Material: ABS
Package Contents:
1 * receiver
1 * lotus line
1 * charging line
1 * o line
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Made of high quality aluminium. anodic surface treatment, corrosion resistance and wear resistance.
Build-in 3 bubble levels, easy to find correct shooting direction no matter horizontal or vertical shooting.
Fast loading base with antiskid lock function, protect your camera from falling off.
50mm(1.97 inch) in length. Adapter jaws will accept plates from 38-42mm wide.
Compatible with any Arca style plate such as, RRS, Wimberley, Jobu Design, Arca Swiss, Kirk Enterprises, Markins, etc.
Material: Aluminum alloy
Product size: 7.8 x 5 x 2.0cm / 3.1 x 2.0 x 0.8in
Weight: 190g
colour: black
Package Contents:
2 x Yuntai plate holder
2 x Wrench,
2 x screw
2 x screw adapter
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Style: Portable Microphone
Transducer: Condenser Microphone
Use: Conference microphone
Communication: wireless
Model Number: Wireless microphone
colour:Black
Material:ABS
size:6.2 x 2.5 x 2cm
Package Contents:
1 x Wireless Collar Clip Transmitter
1 x Receiver
2 x Windproof Sponge Cover
1 x English Manual
1 x Usb Cable
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Three coils - This wireless charger transmitter module uses 3 coils for full charging.
High charging efficiency saves power and time.
Multi-level protection - Built-in short circuit protection, over voltage protection, ensuring safe charging.
Wide compatibility - Support for Qi standard phones.
Universal micro-type interface - Plug and play.
Type: QI standard three coil wireless charging (Micro-port)
Model: QC-3
Plate frame size: About 104 x 52 x 1mm / 4 x 2 x 0.03inch
Coil size: About 92 x 52 x 2mm / 3.6 x 2 x 0.07inch
Light indication: Breathing light
Launch distance: 5-10mm
Charging current: 1000mA
Wireless charging output: 5V/1A
Boost efficiency: 93%
Working frequency: 110-205KHZ
Wireless charging conversion efficiency: 75%
Compatible with QI standards: WPC1.1
Protection measures: Over current, over temperature, short circuit protection
colour:Photo color
Material:ABS
Package Contents:
1 x Wireless Charging Module
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

[Improve the sound quality] Installed under the spikes on the floor speaker, it can protect the hardwood or tile floor from being scratched and damaged, while allowing the spikes to separate the speaker box from the floor, thereby improving the overall sound quality.
[Balance] Designed with highly-adjustable balance nuts. Suitable for speakers, amplifiers, CD DVD players, turntable recorders, cases, musical instruments, etc.
has better effect, high-grade electroplating, beautiful, bright, and not easy to be scratched.
[Loading] Load capacity of 4 studs is approximately 100 pounds (45kg)
Function: shock absorber
colour:Gold
Material:Aluminum alloy
size:Feet height: 25MM
Foot nail diameter: 28MM
Non-slip stickers: 3MM
Package Contents:
4 x shoes feet
4 x Slip mat
4 x double-sided tape
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Board radiating surface
Homogeneous sounding board
Widely used in ultrasonic cleaning , ,beauty and so on
High performance: high mechanical Q-value, high conversion efficiency
Large amplitude, Piezoelectric ceramic materials provides good heat resistance
Power: 60W
Frequency: 28KHz
colour: silver
Material: aluminum alloy
Size: 35x47x45mm
Package Contents:
1 x Transducer
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Plug and play support for USB HDD storage and MMC/SD/MS/SDHC card.
Support most popular files including HD movies (1080p, etc.), MKV & Blue-ray DVD movies.
Support HDMI-compatible output up to 1080p.
Auto plays function ON/OFF from Movies/Music/Photos. Auto Play DVD ON/OFF
The smallest high definition media player.
Enjoy your HD movies, photos and music.
USB HOST Function: can drive external USB storage devices such as USB HDD or USB pen drive, and play or manage files on them.
H.264 decodes technology with 1080P resolution.
SD/SDHC reader: directly read SD/SDHC card, and play or manage files.
Plug and play connection with USB storage devices for easy transfer.
Play your favorite media files directly on a TV set using the HDMI-compatible or composite AV ports.
Supports HDMI-compatible and AV outputs.
Main Chipset: Box Chip F10
Compact and portable design
Supports SD/MMC card up to 32GB
Supports MKV video & Blu-ray movies
Supports E-Book (TXT&LRC)
File system: FAT/FAT32/NTFS.
Audio file: MP3, WMA, WAV, OGG, AAC, LPCM, FLAC, AC3, APE etc.
Audio output: stereo R/L, HDMI digital.
Video codec: H.264,MKV,WMV9,MPEG1/2/4,HD DIVX, XivD, FLV, RM/RMVB.
Video files support: MKV,TS,M2TS,MTS,WMV,IFO,ISO,VOB,DAT,AVI,MPG,MP4,MOV,RM,RMVB,DIVX,XVID,FLV.
Video resolution: RM/RMVB,H.264,MKV/WMV9,TS and HD DivX support up to 1920x1080p.
Subtitle: SUB, SMI, SSA, SRT, IDX SUB.
Interface: HDMI-compatible, AV, USB2.0 Host, SD/MMC
Input: AC100-240V, 50-60Hz
Output: DC5.2V, 2A
Colour: black
Material: ABS
Size: 75x65x15MM
Package Contents:
1 * Mini Full HD Media player
1 * AV cable
1 * IR Remote controller
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

8 digit bi-directional 3.3V-5V/5V-3.3V logic level converter board, it can bidirectionally transfer with 8 channels between high logic voltage and low logic voltage.
VCCA side voltage range: 1.2V-3.6V; VCCB side voltage range: 1.65v-5.5v; 3.3V going to VA; 5V going to VB; 3.3V going to 0E, OE active high enable IO recommended by a low voltage side of the IO port.
High-speed shifter, tie the OE pin directly up to 3.3v to WORK.The level converter provide serial interface is very easy to use.
Widely used in the communication between 5V SCM and 3.3V device, 3.3V SCM and 5V device. It can also apply in the level conversion between MCU and SD card, MCU and iic/spi serial port devices.
TXS0108E operate in both open-drain and push-pull modes, with max data throughput of about 2Mbps (open-drain) and 60Mbps (push-pull) for 3v3 to 5v translation, serial communication interface is compatible with UART/IIC/SPI port, which is easy to connect.
Colour: blue
Material: plastic
Package Contents:
10 sets * TXS0108E 8 channel converter module
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

[Widely Application] The bluetooth MP3 decoder board can easily used to improve the sound quality of ordinary audio, widely used in toys, gifts, fitness equipment, household appliances, broadcasting systems, etc.
[High Quality Sounds] bluetooth mp3 decoding board can switch signal directly, and insert upport USB, TF card. Bluetooth EDR (after working in tandem with mobile phones, you can implement a wireless music game). Can use USB / TF / bluetooth / FM / line switch and Mp3 / wma, wav lossless music decoding chip.
[Smart Switch] Support SD card / USB flash switching, songs selection, volume adjustment, EQ, play / pause, stop, mute, shutdown, direct election song.
[ File System] Support for FAT16, FAT32 file system. Support for MP1 layer3, MP2 layer3, mp3 layer3 version of the song. Supports power-off function: memory plays songs and volume before power is turned
Key Description:
USB: Connect U disk (maximum support 32GB)
LED: Digital color screen display, red infrared receiver module
TF: Connect TF memory card (maximum support 32GB)
AUX: Audio input interface
VOL-: Short press is to select the previous song; long press is to decrease the volume
PLAY/PAUSE: Short press is to switch between pause and play; long press is to automatically search for radio FM
VOL: Short press is to select the next song; long press is to increase the volume
MODE: USB/TF/FM/AUX/BLUETOOTH sound switch
Interface Description:
Audio input RFM antenna solder joint
Audio input L GND
Left channel positive L
Left channel negative L-
Right channel positive R
Right channel negative R-
Audio output L GND Audio output R
Colour:black
Material:ABS
Size:107.2 x 25.7 x 26mm
Package Contents:
1 * Decoding Module
1 * Remote Control
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

5.4 ft VGA Cable to HDMI male to male.
Cable transmits video sign up to a resolution of 1024 x 768 pixels.
Connectors-gold plates to ensure the quality of transfer of sign.
Slots: 1 x VGA 15-pin HDDB15 - male, 1 x HDMI - Male
Black color
Cable Length: 5.4ft / 1.65m
Usage note: HDMI is the signal input, VGA is the signal output, can not be reversed
Note: Not all devices with an HDMI or VGA interface are able to use this cable.
The analog and digital signal is difficult to transfer, so please check your devices carefully before ordering, please.
Note: This does not work directly with LCD laptops and requires an adapter box to convert VGA signals to HDMI in the first place.
Only the cable is not enough. It is only compatible with high definition player, the converter is necessary to connect the PC and TV. Make sure you understand how to use this cable before buying, please.
Please consult the manual of your VGA card for more information.
Package include:
1 x Cable Adapter
Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3 cm.

Model: WLS-20
Product type: Water level alarm detector
WI-Fi:2.4G 802.11 b/g/n
Power input: 3.7V Rechargeable Lithium Battery 500mAH
Charge: Micro-USB 5V DC
Alarm current: less than 130mA
Standby current : less than 2uA Alert: APP notice/Local sound 60dB/IFTTT
Alarm notification: APP push, BIBI sound, intelligent linkage
Buzzer Alarm Sound : less than 60dB
Battery standby: more than 1 year
Sensor cable length: 200CM
Colour: white
Material: ABS
Size: 71x64x23mm
Package Contents:
1 * Water immersion detector
1 * English manual
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

[DURABLE] - The remote control made of high quality material is durable, giving you complete control over your television.
[NO SETUP REQUIRED]- This is a very light and durable remote control No programming or setting up required, simply insert the batteries ( not supplied ) and it will work immediately.
Perfect replacement: use the most advanced smart chip design.
[Sensitive and comfortable] With ABS shell and sensitive keys, comfortable to hold the product.
Model:RAR-3V2
Control distance: more than 10M
Battery: 2 *AAA (not included)
Colour: white
Material: ABS
Size: 140x55x20mm
Package Contents:
1 * Remote control
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

100% Brand New and High Quality.
Material:plastic
colour:Black
Package Contents:
1 * LCD Dual Charger
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Dual-diaphragm 6w dual-speaker bass vents provide powerful bass output, strong and powerful.
Touch the indicator area to switch the lighting effect at will. The cool atmosphere light can switch various lighting effects with different usage scenarios, so that the sound will not be heard.
360° surround stereo HIFI sound quality, explosive bass, bring you live sound like a concert , built-in anti-magnetic chip, completely eliminate mobile phone/computer interference and no longer have current noise.
Upgraded Bluetooth 5.0 chip, high-speed transmission and low power consumption, stable and continuous connection, no lag, enjoy good music , the independent knob to adjust the volume, easily turn the knob left and right to adjust the volume.
Suitable for multi-scene e-sports, listening to songs, watching dramas, watching movies, etc.
Connection method: 3.5MM audio jack/Bluetooth 5.0
Interface type: USB
Frequency response range: 100HZ-20KHZ
Channels: 2
Effective distance: 10 meters
Number of speakers: 2
Colour: black
Material: ABS
Size: 42x5.5x7cm
Package Contents:
1 * Computer sound bar
1 * 3.5mm Audio cable
1 * USB cable
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Reflective tape is a kind of light reflecting in the dark and at night. A reflective band, a warning and reminder roll, especially for road vehicles, ships, fairways, stage, a variety of channels.
Surface is hexagonal honeycomb pattern. They are three-dimensional. Good, viscous, waterproof, long life, strong reflectivity.
Reflective film can show the outlines of the body clearly, in determining the vehicle type, size and avoid accident.
Good quality adhesive reflective film and the board can be fixed, not easy to combine.
Name: reflective safety warning tape
Color: blue、green、red、Orange
Material: reflective film
Width: 5 cm/ 2 inches
Length: 3 m/ 10 feet
Quantity: 1 piece in the cart
Note: This type of tape is reflective tape, when illuminated lights are irradiated. It will be reflective in the dark night! Not self-luminous. Band itself does not emit light!
Delivery content:
1 x reflective safety warning tape
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Reflective tape is a kind of light reflecting in the dark and at night. A reflective band, a warning and reminder roll, especially for road vehicles, ships, fairways, stage, a variety of channels.
Surface is hexagonal honeycomb pattern. They are three-dimensional. Good, viscous, waterproof, long life, strong reflectivity.
Reflective film can show the outlines of the body clearly, in determining the vehicle type, size and avoid accident.
Good quality adhesive reflective film and the board can be fixed, not easy to combine.
Name: reflective safety warning tape
Color: blue、green、red、Orange
Material: reflective film
Width: 5 cm/ 2 inches
Length: 3 m/ 10 feet
Quantity: 1 piece in the cart
Note: This type of tape is reflective tape, when illuminated lights are irradiated. It will be reflective in the dark night! Not self-luminous. Band itself does not emit light!
Delivery content:
1 x reflective safety warning tape
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

A firm, comfortable grip for vertical-position shooting with the Camera. Buttons and controls are conveniently placed and easy to reach for greater comfort
Holds one Li-ion batteries for extended shooting
The rugged, but lightweight, body design has gasket-sealed controls to resist dust
Muliti function grip with vertical-grip shutter-release button, AE/AF lock button, ISO sensitivity button, White balance button and Exposure compensation button etc.
Remaining power indicator, the same function as the original Panasonic grip
Work For Panasonic Lumix GH5 GH5S SLR Digital Camera
colour:black
Material:plastic
Package Contents:
1x Battery Grip
1x User Manual in English
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.