Innovative feature:Rich interface with HD USB SD, compatible with multiple devicesMax 150inch Large Image ,9 times larger than 50inch TV10Year Life-No Future Cose (LED 30,000Hours ,If use 10hours per day ,it can use 3,000days)Optional: add Android 10.0 OS TV box, Supports wireless display for smartphones and tabletsOptical specifications :Display Tech: 4.0” LCDLight source: LED, 30000Hours long lifeBrightness: 140 ANSI lumensContrast Ratio: 1800:1Resolution: 800*480, Support to 1080PAspect Ratio: support 16:10Projector Ratio: 1.34:1Project Dimension: 36-150''Project distance: 1- 4mInterface :HD x1USB (max support 32G U disck,Does not support Mobile Hard Disk) x1 ;TF (max support 32G U disck) x1 VGA x1AV x1Audio Out (3.5mm Headphone jack)x1AC-in AC90V-240VOthers specifications:Speaker: 8Omega,3WProjection Mode: Front/ Rear/ Ceiling front/ Ceiling rearKeystone Correction: V:+/-15 degreePower consumption: 45WDevice: 197 x 166 x 78mmWeight: 1 kg