INDICATORS ON YEALINK MEETING BOARD 86 YOU SHOULD KNOW

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 screen, will have to lengthen his or her arm with or with out a stylus to prevent casting a shadow.A Wii-primarily based IR procedure was invented by Johnny Chun