Incredibly sharp visuals with 900-lumen light output and WXGA 1280 x 800 resolution Wireless Projection Ready lets you wirelessly connect and stream presentations Short throw projection of 51-inch from just 1 meter from the screen Quick setup time with instant on/off capability, auto keystone correction, and two-level kickstand design PC-free multi-format compatibility with built-in HDMI, SD card reader, USB plus dual ASUS SonicMaster audio speakers Display Technology: 0.45" DLP Light Source: R/G/B LED Light Source Life (max): 30000 hours True Resolution (native): WXGA(1280x800) Light Output (max): 900 lumens Contrast Ratio: 10000:1 Color Saturation :100%(NTSC) Display Colors :1.07 Billion I/O Ports: Signal Input : HDMI, D-sub, Video Input : Composite Video, Audio Output : Earphone out, USB Port : 1 x Type A port, Card Reader : SD Multimedia Format Supported: VVideo: AVI, MKV, MOV, MP4, MPG, MPEG, WMV, Audio: AAC, MP2, MP3, WAV, WMA, Picture: JPEG, BMP, JPG, Document Viewer: Adobe PDF, Microsoft PowePoint, Microsoft Excel, Microsoft Word, Text Built-in Speaker: 2 W x 2.