Wireless capability, compatible with 802.11a/b/g-compliant devices. During pauses, A/V Mute Slide feature covers lens, mutes audio, powers down the lamp. Display Resolution: XGA (1204 x 768). Brightness: 2200 ANSI lumens. Contrast Ratio: 400:1. Contrast Ratio:: Nñ Resolution: Nñ Brightness: Nñ Width: N«