Product information:Display Technology: DLP(0.23"DMD)Brightness: 200ANSI lumensService life of projection light source: 30000/hourProjection size: 20-150 inchesContrast Ratio: 1000:1Throw ratio: 1:2:1Projection distance: 0.5m-4mProjection aspect ratio: 4:3/16:9/16:10Keystone Correction: Automatic Vertical: ±40 degreesOff-axis function 1009%3D supports 3D displayFocus mode Auto focusSystem: Android 7.1.2CPU: RK33688 core 64-bit A53, 1.5GHZGPU: PowerVR G6110 GPURunning memory: 2GDDR3Internal eagle storage: 16GBWIFI: 2.4G/5GWifLNBluetooth: BT 4.2Mirroring on the same screen: Eshare/Airplay/MiraCastBuilt-in battery capacity: 8000MAHBattery life: work about 1.5-2 hoursRemote control: 2.4G voice remote controlBuilt-in speaker: 1*3W speakerInterface: HDMI*1; USB*2 3.5mm headphone output*1; DC input 15V3A*1Packing list:1*Projector*1*Remote Controller*1*HDMI Cable*1*Adapter*1*Instruction Manual