HOW YEALINK MEETINGBOARD CAN SAVE YOU TIME, STRESS, AND MONEY.

Front-projection interactive whiteboards Use a video projector before the whiteboard. A downside of entrance-projection whiteboards is that the presenter, standing before the display, need to increase their arm with or with out a stylus to prevent casting a shadow.A Wii-dependent IR system was invented by Johnny Chung Lee, PhD. in 2007. Lee claimed