Native Resolution of Projection: 1280*720, supports 4K Projection Distance: 0.83-3 meters (screen size: 20-150 inch) Average Screen Brightness: 250 ANSI lumens Aspect Ratio: 16:9/4:3 Audio & Others Speaker: 5W Power Consumption: 40W Connections: AV/USB/HDMI-compatible/ 3.5mm jack out/Type-C