ViewSonic PLED-W500 80-Inch 720p Front Projector (Black) Ultra Portable LED Projector, WXGA 1280x800 / 720p Resolution, 500 ANSI Lumens, 3500:1 Contrast LED Light Source over 20,000 hours, Low power consumption &lt; 120 watts, Multiple inputs: HDMI, VGA, SD, USB, composite, S-video, audio Internal memory 1GB for file storage, PC-Less Presentation for MS Office, PDF, video, photo, USB Display, Ultra portable &lt; 3 lbs Compact size 8.4"x1.6"x6.4" (WHD), Integrated speakers 2 watts, Throw ratio 1.4:1, Support HD 1080p/i & 720p 120Hz / 3D-Ready Powered by DLP, Auto vertical keystone correction +/- 40, Apple Mac compatible, Remote control with batteries