ASUS P2B Battery-Powered Portable LED Projector Compact, light-weight, and portable, with built-in rechargeable battery power 350 lumens-rated long-life LED light source for HD 1280 x 800 visuals Extensive connectivity with HDMI/MHL, mini VGA, USB port, microSD card reader, earphone out & speaker Short throw (TR 1:1) projections of 42" from only 1 meter distance Quick setup time with instant on/off capability and auto keystone correction