Projection parameter Display technology: DLP(0.3"DMD) Projection light source: RGB LED OSRAM Q8 Projection light source service life: Up to 30,000 hours Brightness: 220 ANSI Lumens Lamp type: LED (R, G, B) Resolution: WVGA 1280*720 Projection size: 40-300 inch Contrast ratio: 400:1 Throw ratio: 1.2:1 (38 inch@1M) Distortion: <1.26% Uniformity: >85% Projection distance: 1m-8m Projection aspect ratio: 4:3/16:9/16:10 Focus mode: Manual focus Keystone correction: Automatic, vertical: ± 40 degrees Projection role: Interaction Projection mode: Front Projection Off-axis function: 100% 3D function: Support System parameters Same screen mirroring: Eshare/Airplay/MiraCast System: Android 6.0.1 Solution: RK3368 "Eight-core 64-bit Cortex-A53, clocked at up to 1.5GHz" Processor: PowerVR G6110 GPU Running memory (optional): 2G DDR3 Built-in storage (optional): 16GB WIFI: 2.4G/5G Wifi Bluetooth: BT 4.0 Basic parameters Built-in battery capacity: 12000MA Battery life: work for about 2 hours Video format: "Supports 4K VP9 / H265 / H264 video decoding up to 60fps 1080P multi-format video decoding (VC-1, MPEG-1/2/4, VP8) 1080P video encoding, support H.264, VP8 format" Music format: MPEG1 Layer3 AC3 EAC3 AAC, HEAAC WMA LPCM IMA-ADPCM/MS-ADPCM Picture format: Supports variety of image formats browsing (jpg, png, bmp etc.) Expansion storage: Support TF Card and Hard Disk Remote control: Support IR and 2.4G wireless remote Built-in speaker: 2pcs 3w speaker Optical machine power consumption: 12W Machine power consumption: 21W Adapter: AC100-240V, 50/60Hz, DC 15V 3A Interface: 1*TF Card: Max 32G 1*HDMI: HDMI Input 1.4 2*USB: Support Flash Drive read data 1*Earphone: Audio output, 3.5mm joint (can connect with earphone or speaker box) 1* DC input: DC 15V 3A Packing Body color (optional): silvery/Black Body size: (L×W×H) 174*42mm Net weight: 871g Gross weight per set: 1870g Color box size: 214x214x130mm Box size: 440*410*250MM Gross weight per box: 12kg/6set