THE SMART TRICK OF YEALINK MEETINGBOARD THAT NOBODY IS DISCUSSING

Entrance-projection interactive whiteboards Use a movie projector in front of the whiteboard. A downside of entrance-projection whiteboards would be that the presenter, standing before the monitor, will have to lengthen his / her arm with or with no stylus to stay away from casting a shadow.A Wii-based mostly IR process was invented by Johnny Chung