1.Interactive dual-writing Whiteboard. 2. Infrared technology, Green Material. 3. 29 Languages Choice. 4. Finger touch. ... display each other, achieve interactive communicate and response. 3).Infrared technology, Green Material:Infrared Technology: Green Technology, finger touch, the surface is ... information, pls visit our website:www.chinaeboard.com 82'' Infrared Interactive dual-writing Whiteboard