... focus to make you see more clear image 3.RGB three colors light source 15 lumens pocket DLP projector and built ... ~2.5M LED LampLED Lam,,Ture 3LED/R,G,B Three ColorsLamp LifeAbove 20,000 hrs lifeI/O,Computer1 x VGA ... ,Optional AccessoriesProjection screen, Remote, Carrying Case,Ceiling mountessential informationNoise(STD/Bright)31dBOSD User ControlsChinese,English etcDimensions(W x H x D ...