Front-projection interactive whiteboards have a video clip projector before the whiteboard. A disadvantage of front-projection whiteboards is that the presenter, standing before the display screen, must extend his / her arm with or with out a stylus to stay away from casting a shadow. Be aware: If dealing with multiple https://yealinkmeetingboard01356.blog-kids.com/34364870/the-yealink-meeting-board-86-diaries