The Epson BrightLink 475Wi Interactive 3LCD Projector with Wall Mount Kit by B&H brings together the feature-laden 475Wi presentation projector with a wall mount made specifically for its series. The 475Wi packs 2 600 lumens of brightness and a 3000:1 contrast ratio; power to show a big bright picture in a normally lit room. With its 100 - 240VAC power supply and NTSC/PAL/SECAM TV standard compatibility it can be used the world over. But that s just the basics. This projector comes with a host of tools for both Windows and Mac. The network-ready 475Wi uses special technology and unique inkless pens to integrate interactive whiteboard convenience into one system without the constraints or expense of actually purchasing a whiteboard. Annotate from any source. Once you ve installed the software on your computer you can actually write directly on your projected content as you show it whether you re using the wall blackboard or even wall paneling if necessary for a projection surface. With the two included pens users can write simultaneously or independently and the short throw system can be mounted at just under a foot away from the board and still project a WXGA image as large as 100 diagonal without shadow puppet interference from the viewers. That s a real attribute in tight quarters where the presenter prefers to work close to the screen as in a classroom environment while inviting participants to annotate along with him or her. Connectivity is key to the design of the 475Wi. Of course you can draw your source material via a computer in the usual way but you can also draw it over a network for multi-room presentations or to show digital signage. Other computer-less options included the USB plug and play input iPads document cameras and Blu-ray players. Additional input/output options include HDMI S-video Composite video audio in mini stereo in variable audio out serial RS-232c and monitor out.