1. The buzzer alarm when the obstacle is detected by radar, let you park your car accurately, not worry about Scratched your car.2. Easy to install and run. No drilling required, come with a install synopsis.3. When a vehicle enters 2 meters distance obstacle, video radar system indicating the obstacle distance. When a vehicle enters 1.2 meters distance obstacle, buzzer starts alarm.4. Waterproof camera with 170 degrees wide viewing angle, expand the car rearview perspective; Waterproof camera shot to avoid the scoring from the rainwater and the slopes on the road.Make your driving and more convenient with this Radar Camera.Color:BlackMaterial:plasticPackage Contents:1 * camera lens1 * video cable1 * power cable1 * buzzerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.