The OPTOMA's ML750 WXGA LED DLP 3D portable projector has a brightness of 700 lumens and a contrast ratio of 10,000:1. It has a WXGA 1280 x 800 widescreen resolution and can project a 2D or 3D image up to 100" diagonally. The ML750 is driven by a DMD DLP chip system, and its LED light source has a 20,000+ hour lifespan. This model provides multiple connectivity options including HDMI and VGA via a 24-pin universal port, MHL connectivity via HDMI allows you to display content from your mobile device, and present without a PC via USB, microSD, or 1.5GB of internal memory. These three alternatives can handle a wide range of file types, including audio, video, photos, PowerPoint, Excel, and Word documents.