... : '-40~60°C 18) Storage Humidity : 10-95% 19) Operating System : Windows7,XP,Vista 20) Size Rate : 80“ 21) Data Port ... whiteboards can connected via internet, so teachers can make remote teaching, also can make instant online communication, interactive response and discussion ... amplify glass, mask, record, save, playback, print, email, etc. 2012 multimedia teaching equipment for school or meeting room