... : first point 21ms,container point 5ms 11) Board Size,Digonal(Inch) : 80" 12) Active Area(mm) : 1625x1175mm 13) Outer Size ... online communication, interactive response and discussion between different users in different areas.Support multi whiteboards connect, support writing, drawing, operation, ... , save, playback, print, email, etc. Used for education Infrared interactive electronic whiteboard