1. Vehicle power supply supported, easy to use. 2. Small and light weight, portable to carry with. 3. Multi-function interface: VGA, AV,SD, USB input 4. Manual focus adjusting, get picture from 20 to 80 inches. 5. Rollover image which supports upward and downward installation. 6. Watch DVDs, family videos, listen to music, view pictures and more. 7. Turn any wall into a complete cinema experience with the LED projector. 8. Easy changing in 16:9 and 4:3 aspect ratio; Low power consumption, echo-oriented. 9. The LED lamp can work for over 20,000 hours, and can provide beautiful colors. 10.The cost of the bulb is about 16 dollars. 11.The professional appearance design for ventilation has largely improved the stability and life time for the projector.