Built-in Battery: 4000mAh 3.7V 14.8Wh Extended Storage: Support TF Card and Hard Disk Remote Control: Support(IR) Infrared and 2.4G wireless control 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 Android 9.0 OS WiFi: 2.4G & 5G BT: BT 4.2 Basic Frequency:Quad Core ARM Cortex-A55 CPU GPU:ARM Mali-G31 MP2 GPU Memory: 8GB Light Lifetime: Up to 20,000 hours Brightness: 65 Lumens Contrast Ratio: 500:1 Resolution: WVGA 854*480 Project Dimension: 30-120 inch Speaker: one 1W speaker Projection Mode: Front/ Rear/ Ceiling front/ Ceiling rear Keystone Correction: Vertical ??40 degree,Horizontal ??45 degree,Multi angle adjustment The product appearance and printed words may vary depending on the batch, but this does not affect use. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-240V Colour:As Shown Material:ABS Package Contents: 1 * mini projector 1 * adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.