ASUS B1MR 900-lumen 1280 x 800 HDMI VGA USB&nbsp; SD card reader Short-Throw&nbsp;Ultra-bright Wireless LED Projector 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 Sonic Master audio speakers Throw Ratio: 0.9