Used only a handful of times. Has maybe 60 hours usage on LED lamp Highlights: WXGA 1280 x 800 Native Resolution Brightness of 500 Lumens 10,000:1 Contrast Ratio LED Lamp Lasts 20,000+ Hours Texas Instruments DLP Display Technology Project up to a 100" Diagonal Image 3D Ready Wireless Presentation Capability HDMI Input & MicroSD Card Slot NTSC, PAL & SECAM Compatibility Features The portable Optoma ML550 3D Ready Mobile LED Projector delivers 500 lumens of brightness with a sharp 10,000:1 contrast ratio. It features WXGA 1280 x 800 widescreen resolution and can project up to a 100" diagonal 2D or 3D image. The ML550 is powered by a DMD DLP chip system and its LED light source features a long lifespan of 20,000+ hours. This means you'll save money because there are no traditional projector lamps to buy or replace. LEDs are also more energy efficient and they produce less heat. This model also provides multiple connectivity options including HDMI and VGA via a 24-pin universal port. The ML550 supports PC-less presenting via USB, microSD or 1.5GB internal memory. These three options support a variety of file formats including PowerPoint, Excel and Word files/documents. The projector has a built-in 1W mono speaker as well. Other features include a low standby power consumption level that's less than 1W and a complete on-screen menu that supports adjustments in 16 different languages. This projector even affords wireless presenting, although the optional BI-EXTBGN adapter is required. Compact design with a brightness of 500 lumens and a 10,000:1 contrast ratio WXGA 1280 x 800 native resolution View office files, videos and images without having to connect projector to a PC Wireless presentation capability via optional BI-EXTBGN adapter The LED light source saves you money since there are no lamps to buy or replace Projects up to a 100" diagonal image DMD DLP technology provides multi-color processing to produce accurate colors LED lamp...