1: When reversing, 4 sensors at the back and 2 at the left and right corners in front of the car are activated, a total of 6 sensors to assist you in parking. 2: When driving a car and braking, the four sensors on the front of the car are activated to assist the driver in safely passing through narrow passages, meeting cars, overtaking, etc. When the brakes are released, the sensors continue to work for 15 seconds and then stop.. 2: Probe behind the car to prevent collision, probe in front of the car to prevent rubbing. 3: The product provides early warning of danger and reminds the driver through sounds, numbers, lights, etc. 4: 8 light bars are displayed on the display to show the location of obstacles. 5: The product has voice/buzzer/mute, 3 alarm sound modes, which can be switched between each other. 6: The sensor can be painted.