Vetítők és bemutató berendezések

Feature:
1. The pointer embedded in the transmitter is suitable for multi‑scenario applications, projectors, CLP teaching, etc.
2. The wireless briefing device adopts RF radio technology, and the control distance can ten meters
3. There is no limit to the direction of use, control through obstacles, so you have the flexibility to control
4. USB receiver is plug and play, no need to drive, gravity sensor cursor control, full sense of technology
5. Small size, easy to carry and store, convenient to use and with good performance
Specification:
Item Type: Wireless Presenter
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Wireless Frequency: 2.4GHz
Modulation: PWM
Encoded Data:
Effective Distance: Approx. 10meter / 32.8ft
Transmit Power: &;5mW
Power: &;5mW
Wavelength: 650nm
Receiver Type: USB receiver
Colour: Black
Material: ABS
Number of Keys: 12
Battery: 2 x AAA batteries (shipped without batteries)
Compatible System: for Windows98/SE/ME/2000/XP/LinUX/Win7/ /Vista
Product List:
1 x 2.4G Wireless Presenter (Without Battery)
1 x USB Receiver
1 x User Manual
Package List:
1 x 2.4G Wireless Presenter (Without Battery)
1 x USB Receiver
1 x User Manual

Description:This powerful voice amplifier can make your voice louder so that you don't have to consciously say loudly or even shout when needed. It will protect your throat and is good for your . Ultra-long battery life allows 15~20 hours of continuous use. And you can stably and comfortably fix the amp on your waist with the waistband. It is for teachers, coaches, guides and so on.
Features:1. High strength ABS shell, durable and .
2. This speaker can make your voice louder with great voice amplification performance.
3. Built-in rechargeable battery, long battery life, can work for about 15-20 hours on a single full charge.
4. Comes with a strap, can be worn at the waist and used conveniently. Compact and lightweight, you will not feel heavy.
5. Can work with MP3, MP4, cellphone, and computer. for teacher teaching, guide, public speaking, etc.
Specifications:Type: US, EU, UK (Optional)
Color: Black
Shell Material: ABS
Size: Approx. 105 * 85 * 42 mm / 4.1 * 3.3 * 1.7 inch
Battery Type: Built-in 7.4V Battery
Battery Capacity: 1800mAh
Power Supply: Input AC 100V-240V 50/60Hz; Output DC 10V 350mA
Output Power: Max. 20W
Frequency Response: 100Hz-13kHz±3dB
Charge Time: About 3-4 Hours
Working Time: About 15-20 Hours (in full charge)
Package Weight: About 400g
Package List:1 * Voice Amplifier
1 * Power Adapter
1 * Microphone
1 * Waistband
1 * Audio Cable
1 * User Manual
(Other items in the pictures are not inicluded.)
Note: The microphone is directional. Please put the microphone pointed at your mouth rightly at a distance of about 20-30mm.

Features:1. Acoustic signal transmitting and receiving equipment. With 3.5mm plug, 6.35MM adapter suitable for conversion 3.5m jack. Compatible with audio, amplifier, computer and other different equipment.
2. Divided into two parts transmitter and receiver. The receiver is connected with audio with 3.5mm plug. The transmitter can be worn and can be used for both hands. It makes the wireless speaker easier to use and the sound quality is clear.
3. Adopt UHF high frequency low power wireless technology. The factory boot is automatically configured. If the pairing is unsuccessful, please follow the procedure (wireless headset connection operation with the receiver).
4. Transmission up to 50 meters (in the company test environment), with no direction restrictions.
5. Widely used in loudspeakers, audio and video equipment, outdoor equipment, audio-visual professional amplification.
Specifications:Frequency range: 600MHZ-900MHZ
Audio signal: digital sampling 48KHZ
Microphone: Capacitive
Frequency mode: factory default automatic matching
Power consumption current: 0DB<75MA
Frequency response: 20-20KHZ
Power supply mode: lithium ion battery
Use time: 6 hours or so
Wireless distance: classroom environment 50M
Size: Approx. 17*14.2*4cm/6.69*5.59*1.57inch
Package List:1 * Transmitter
1 * Receiver
1 * Charging Cable
1 * Wind-proof Cotton
1 * Adapter Head
1 * User Manual
Note:
Blue light flashes quickly indicating low battery. Lights out when power runs out. Please charge the battery as soon as possible when it is completely off. The red light is always on when charging, and the red light is off after the full charge.

Description:condition: 100% brand new
Product name:Board rubber
Material:EVA
Color:Random Color
1.100% brand new and high quality.
2.Easy to use, smooth and easy to pick and use
3.Small size, easy to carry, easy to use daily
4.Magnetic strip on the side for suction on the whiteboard
5.It's a good assistant, quality and durable.
6.The eraser is convenient to use, wipe smooth take light
Note:
1. It is well known that different computers display colors in different ways, and the actual project colors may differ slightly from the following images.
2. Please ignore the size. Size may sometimes be smaller than the size we describe, and China's size is usually smaller than the size of Europeans and Americans. Therefore, please allow 1-3CM to be different.
3. If you find it difficult to select a size, you can always contact us, we will give you some advice, but for your reference only.
We can accept orders for mixtures, colors and sizes. The more the quantity, the more the discount.
Package include:1 pc Board rubber

Description:condition: 100% brand new
Product name:Board rubber
Material:EVA
Color:Random Color
1.100% brand new and high quality.
2.Easy to use, smooth and easy to pick and use
3.Small size, easy to carry, easy to use daily
4.Magnetic strip on the side for suction on the whiteboard
5.It's a good assistant, quality and durable.
6.The eraser is convenient to use, wipe smooth take light
Note:
1. It is well known that different computers display colors in different ways, and the actual project colors may differ slightly from the following images.
2. Please ignore the size. Size may sometimes be smaller than the size we describe, and China's size is usually smaller than the size of Europeans and Americans. Therefore, please allow 1-3CM to be different.
3. If you find it difficult to select a size, you can always contact us, we will give you some advice, but for your reference only.
We can accept orders for mixtures, colors and sizes. The more the quantity, the more the discount.
Package include:1 pc Board rubber

Description:Material: metal, ABS.
Board Size: about 35*25cm/30*20cm/40*30cm
Color: show as pictures.
Dry erase double side white board
Perfect for children, students, teachers, kids, adults, home, work, class, etc.
They're great school supplies that help students lesson plans go smoothly, and they're perfect for office meeting rooms.
This Double-sided, durable dry erase lapboard provides 35.5*25.5cm of portable blank plain white writing space for most of your education & entertainment needs.
Smooth and durable magnetic writing surface, easily drywipe with all dry-erase markers. It's also easy to wipe the writings off even with a tissue or a cloth.
Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.
Package includes:
1 * Whiteboard.

Description:Material: metal, ABS.
Board Size: about 35*25cm/30*20cm/40*30cm
Color: show as pictures.
Dry erase double side white board
Perfect for children, students, teachers, kids, adults, home, work, class, etc.
They're great school supplies that help students lesson plans go smoothly, and they're perfect for office meeting rooms.
This Double-sided, durable dry erase lapboard provides 35.5*25.5cm of portable blank plain white writing space for most of your education & entertainment needs.
Smooth and durable magnetic writing surface, easily drywipe with all dry-erase markers. It's also easy to wipe the writings off even with a tissue or a cloth.
Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.
Package includes:
1 * Whiteboard.

Description:Material: metal, ABS.
Board Size: about 35*25cm/30*20cm/40*30cm
Color: show as pictures.
Dry erase double side white board
Perfect for children, students, teachers, kids, adults, home, work, class, etc.
They're great school supplies that help students lesson plans go smoothly, and they're perfect for office meeting rooms.
This Double-sided, durable dry erase lapboard provides 35.5*25.5cm of portable blank plain white writing space for most of your education & entertainment needs.
Smooth and durable magnetic writing surface, easily drywipe with all dry-erase markers. It's also easy to wipe the writings off even with a tissue or a cloth.
Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.
Package includes:
1 * Whiteboard.