CAIRUTE Night Vision 2 in 1 Car SUV Reverse Parking Radar Auto Rear View Backup 170 Degree Wide Viewing Angle Sensor Camera Kit Car DVD full display adapter, camera with dual probe ultrasonic. Low illumination camera, night vision effect is outstanding. When the car into reverse gear, reversing lamp lights up, automatic startup radar system. When a vehicle enters 2 meters distance obstacle, video radar system indicating the start of the obstacle distance. When a vehicle enters 1.2 meters distance obstacle, buzzer start alarm.