NOT KNOWN DETAILS ABOUT YEALINK MEETING BOARD

Entrance-projection interactive whiteboards Have got a video projector before the whiteboard. A disadvantage of front-projection whiteboards is that the presenter, standing in front of the display, ought to prolong his / her arm with or without a stylus to avoid casting a shadow.A Wii-centered IR process was invented by Johnny Chung Lee, PhD. in 20