YANTAIAN BLJ888A 1280x720P 3800 Lumens Portable Home Theater LED HD Digital Projector,Android Version Product description 1. Material: eco-friendly ABC 2. Brightness: 3800 lumens 3. FOFO contrast: 2000:1 4. Color reproduction: 16770K 5. Life Span: up to 30000 hours 6. Focus mode: manual operation 7. Lens: optical coated lens 8. Throw distance: 1.2-6m 9. Screen size: 50-180 inches 10. Screen rotation: left,right,up,down 11. Aspect ratio: 4:3/16:9 12. Projection ratio: 1.6:1 13. Total power consumption: 55W 14. Supply voltage: AC 100-240V(50-60HZ),DC 19V 3.5A 15. Input: USB/HDMI/AV 16. Output: 3.5mm earphone 17. OS: Android 7.1 18. CPU: TSUMV53RUU-Z1 19. Buffer memory: GM8284DD 20. Memory: 1+8G 21. Bluetooth: 5.0 22. Size: 165x150x178mm