Projection Specification: Projection Technology:DLP(0.3"DMD) Display Chip :RGB LED Q6 Light Life: Up to 20,000 hours Light Luminance: 150 ANSI LED Lumens,Recommend for dark room use only Light Source: LED Standard Resolution:WVGA 854*480 support 1080p,4K Projection Area:30-120 inch Contrast:4000:1-5000:1 Projection Ratio:1.31:131.5 inch@1M Distortion:85% Projection Distance:0.5-4m Aspect Ratio:16:10 Focus mode:Manual focus Keystone Correction:Manual, Vertical: 45 degree,Horizontal 40 degree Projector Character:Interaction Projection Mode:Front Projection Offset function: NO 3D:Yes (DLP shutter 3D) System Parameters: Screen Mirror: Airplay/MiraCast /Eshare OS: Android 9.0 CPU:Quad Core ARM Cortex-A55 CPU GPU:ARM Mali-G31 MP2 GPU Buffer Memory:1G/2G LPDDR4 Memory:8G/32G EMMC WIFI:2.4G/5G 802.11a/b/g/n/ac Bluetooth:BT 4.2 Basic Parameters: Built in Battery: 5000mAh Works for 1 hour after fully charged,also can charge for smartphone,also work with 5V 3A Power bank Video Support(up to 4k):VP9-10,H.265,H.264,MPEG-4,WMV/VC-1,MPEG-2,MPEG-1,RealVideo 8/9/10 etc. Audio: Support:MP3,WMA,MP2,OGG,AAC,M4A,MA4,FLAC,APE,3GP,WAV Image :Supports variety of image formats browsing (jpg, png, bmp etc. Extended Storage:Support TF Card and Hard Disk Remote Control:SupportIR) Infrared and 2.4G wireless control Power : AC100-240V50/60Hz DC 5V 3A Package included: 1 x TF Card: Max support 32G 1 x HDMI: HDMI Input 1.4 1 x USB: USB 2.0 Support USB hard disk data read 1 x Earphone: Audio output, 3.5mm joint (can connect with earphone or speaker box) 1 x USB input: DC 5V 3A & OTG