... /1080i/1080POptical ParametersLensManual Zoom & FocusThrow Ratio20" at 980mmprojection Size10"~80"Projection Distance0.5M ~2.5M LED LampLED Lam,,Ture 3LED/R ... ,product manual and manual (or CD),Warranty card,Optional AccessoriesProjection screen, Remote, Carrying Case,Ceiling mountessential informationNoise(STD/Bright)31dBOSD User ...