1. Small size, big vision. 2. Quiet design, efficient cooling system. 3. Fan + aluminum radiator + vortex duct combination of heat engine, to ensure that the 24 hours uninterrupted steady work. 4. Built-in lithium battery, no need worrying about the power. 5. With high precision coating lens, gives a better experience. 6. Energy saving, low cost of use and environment protection. 7. Support TF card. 8. Portable and convenient to take.