... , achieve interactive communicate and response. 3).Infrared technology, Green Material:Infrared Technology: Green Technology, finger touch, the ... Gallery Free design,free write with different colors, different pen width, different pen styles. With spotlight, camera, amplify glass, ... )2350*1317Project Area(mm)2225*1251Board Size(mm)2502(L)*1468(W)*49 ... Humidity10-98% 120'' Infrared Interactive Whiteboard