3LCD 3-chip technology HDMI Input 16W Speaker Built-In Microphone Input Present over the Network transmitting both audio and video USB Audio Out Monitor Out Computer VGA Inputs LAN RS-232C Optional Wireless Connectivity Broadcast Capability Virtual projector remote control on your computer Expanded USB functionality Metal anchor bar and Kensington lock support 3LCD 3-chip optical engine Poly-silicon TFT Active Matrix 786432 dots 1024 x 768 x 3 Aspect Ratio 43 Native Resolution 1024 x 768 XGA Lamp Life ECO mode Up to 6000 hours Normal mode Up to 5000 hours Throw Ratio Range 148 177 Size projected distance 30 300 09 9 m Manual optical zoom Manual focus F-number 158 172 Focal Length 169 mm 2028 mm Zoom Ratio Optical zoom 10 12