Had out of case only 1 time to test. Did not work for my application. Item is cross posted on another site Bright, shiny and incredibly tiny. At only 4 x 4 x 1.7, the palm-sized Mobile Projector MP410is our brightest portable projector. Plug it in and show your presentation from the projector itself or connect with laptops, tablets, smartphones and more. It even includes the option to connect wirelessly* to your computer, making it possible to present at a moment’s notice. Perfect for presenting to large groups.+ Ultra compact: It fits in your hand and easily tucks into your briefcase+ Ultra bright: This little power house boasts 300 brilliant LED lumens, bringing presentations to life+ Ultra ready: Instant on and off — no need to purchase expensive replacement lamps Specs Brightness: 300 lumens Projected image size: 17 – 100 diagonal Resolution: WXGA (1280 x 768)Audio: Built-in speakers Size (HxDxW): 4.17 x 4.21 X 1.73Weight: 13 oz. Light Source: LED (20,000 hours)Warranty: 1 year limited parts and labor Memory: Internal – 1GBExternal – up to 32GB micro SDHC™ and USB Supported file formats: Photo – JPG/JPEG, BMP Video – MOV, MP4, H264, AVI, MKV, DIVX, MPEG4, WMV, WMV3Audio – MP1, MP2, MP3, WMA