1 special non-destructive installation and perfect fusion of the original car 2 Ultra HD 170 degree wide-angle 3 night vision waterproof waterproof anti vibration with 4 night vision scale 5 automatic white balance automatic focusing "6" gold medal "the credibility of the seller, 7 days no reason to return, 3 months Baohuan, 1 years of free maintenance, free shipping insurance! Mobile phone orders more concessions (ordinary people I do not tell him)