With 1280 x 800-pixel native resolution10000:1 DynamicBlack contrast and 700 ANSI Lumens the pocket size K137 from Acer has big things in store! It project bright clear 2D and 3D images from HD sources and with 2 X 3Watt SRS surround sound it takes you right to the heart of all your favourite entertainment. The K-137 also has excellent multimedia compatibility. The plug-and-play USB port allows you to play back videos and music and display photos stored on enabled devices. There’s also an SD card slot and HDMI-MHL connectivity to stream content from a smartphone.Finally with a wireless Miracast function and DLNA you can share all your multimedia content over a home network. A pair of compatible glasses (not supplied) is necessary to enjoy the 3D technology on this video projector.