... alloy casingFeatureenergy efficient,waterproof,shock resistant,corrosion preventionWaterproof of levelIP68Compare to the first Generation in the market,we have some ... it 1.Built-in 4-5 mins automatically power off function to avoid hot hurt, protect the product, prolong its lifespan ( ... time when the car is in repairing).2.Anti interference function, based on our design of low frequency. It will ...