1. Beautiful and generous in design2. The professional appearance design for ventilation has largely improved the stability and life time for the projector3. The LED lamp works for over 20,000 hours and provide superb pictures4. Professional troubleshooting and protection measures5. The projector is small and light and easy to carry6. Change in 16:9 and 4:3 aspect ratio easily7. Low power consumption (Energy saving and environment conservation)8. A variety of devices can be connected9. Input terminal: AV/ USB/ TF/HDMI/5V 2A power input10. Output terminal: earphone, speaker11. Throw distance: 0.5-3m12. Product size: 114x87x50mm