CPU: RK3128.USB: USB 2.0.: BT 4.0.: 2.4G/5G (AP6330).Flash: supports flash 11.1.Optical ParametersContrast Ratio: 2000:1Lamo: LED lamoLamp life: 30000 hoursBrightness: 2000 lumensAspect ratio: 4:3/16:9/16:10Projection Distance: 1-5MProjection cover size: 30-150 inchesResolution: WVGA 854*480 Support 1080POther HardwarePower Parameters: 5V-2.5ADDR: 1GB DDR3Memory: 8GB/32GBTF card: Support up to 32GB capacityBuilt-in Battery: Built-in 5000MA BatteryAudio frequency Out: Support Audio frequency outStorage Expansion: Support TF card and mobile hard disk expansion