1.Interactive dual-writing Whiteboard. 2. Infrared technology, Green Material. 3. size:80" 4. Finger touch. Interactive WhiteBoards ( ... point 5ms 11) Board Size,Digonal(Inch) : 80" 12) Active Area ... different colors, different pen width, different pen styles. With spotlight, camera, amplify glass, mask, record, save, playback, print, email, etc. Infrared technic 80" Infrared Interactive Whiteboard ...