1. Display technology: LED display technology 2. Projection light source: LED light source 3. Service life of light source: 50000 hours 4. Brightness: 113 ANSI 5. Resolution: 1280 x 720 6. Projection size: 50-150 inches 7. Projection ratio: 1.69:1 (50 inch@1M) 8. Projection distance: 0.8-5m 9. Projection aspect ratio: 16:9 10. Focusing mode: manual 11. Ladder correction: +/-25 degrees 12. Projection mode: forward projection 13. Distortion: <1.0% 14. Speaker specification: 4ohm 3W independent sound chamber 15. System: Android