QVS VW-4PHA WePresent VGA/HDMI Wireless Presentation System with Large Touch Screen and Annotation Support Share a projector or HDTV with a VGA or HDMI port thru wireless connection up to 200' 4-way split screen to show up to 4 users simultaneously Annotate on the screen using Air Pad touchpad Conference control function perfect for training sessions Control PC or Mac remotely using USB keyboard/mouse