Entrance-projection interactive whiteboards Use a online video projector in front of the whiteboard. A disadvantage of front-projection whiteboards is that the presenter, standing in front of the display screen, ought to prolong his / her arm with or without having a stylus to prevent casting a shadow. That’s way too https://yealink-meeting-board-8615680.bleepblogs.com/34600104/yealink-meetingboard-an-overview