Specifications: Support Resolution: 4K, 1920 x 1080P, 1280 x 720P Native Resolution: 1280 x 720P Luminance: 8000 lumens Brightness: 200ANSI Contrast Ratio: 10000:1 Projection Size: 40-130 inches Lamp Life: 50000 hours Connectivity: HDMI, USB, AUDIO Wireless Connectivity: WiFi 6 Aspect Ratio: 16:9, 4:3 Product Weight: 534g Size: Diameter92*164mm Package Included: 1 x Projector 1 x Remote Control 1 x Power Cable 1 x User Manual Notes: 1.Due to HDCP(High-bandwidth Digital Content Protection) , Please play these videos by inserting a TV Stick/Roku/Chromcast into the projector. You can also connect to a laptop/computer to play via HDMI Connection. 2.When it showing picture but no sound, Dolby Sound is not supported, please turn off any Dolby sound settings on your connected devices or Apps. 3.When it showing a black screen while wireless mirroring your phone, Due to different versions of mobile phones, please turn on or off the bottom option "HDCP" in WiFi settings of projector.