home theater,micro projector,LED 25lm project size 20-150 inch DVD,USB, AV/USB ... has such feastures as followsColor Filter LCOS inside luminance brightness: LED 25 lumensResolution dpi: 640*480Contrast ratio: 200:1LED light life ... :20 -150 inchProjestor distancemeter: About 3 meterLength and breadth ratio: 16:9/4:3Foucus: Manual focusWifh computer, DVD, USB, AV/USB ...