Portable projector and charger for Iphone4/4S and iPOD touch 4. Big speaker and battery enable 3 hours long ... 60" screen size.Battery: 2100MAH Li-lon rechargeable batteryAspect Ration: 16:9Contrast Ratio: 1000:1Power supply: DC 5V / 2A2W Speaker.Input ... Picture MTV, Movie, Video, online video, pictures from IPHONE4/4S,IPOD TOUCH 4, and also performcharger for these devices.With loudspeaker, enhance ...