Body size (cm): 8*8*2.8 Screen ratio: 16:9 Resolution (dpi): 854x480dpi Technology: DLP technology Color classification: Rui Ya black (4G+32G) upgraded version gray (2G+16G) standard version Zoom factor: 1.2 times Contrast ratio: 1000:1 Package: official standard Operating system: Android Brightness: 2000 lumens (inclusive)-3000 lumens (not included) Applicable scenarios: Children's puzzle, business office, smart home theater, game entertainment, mobile portable, smart network set-top box, home theater, outdoor pure wireless projection, training and education Bulb type: LED bulb Drop screen size: 20 inch ~ 300 inch Best delivery distance: 1-3 meters Keystone correction range: ±40 degrees