In 1 set of products , you can also choose any color, such as: 8 sensor products, you can choose black 2, white 3, red 3 You can also paint the sensor, and if so, I suggest you choose a white sensor, so that you can better change the color. Product Features: 1: With 6 numbers, it can display the distance of obstacles. It is more helpful than ordinary display with only one number. 2: There is a light bar on the display, which can distinguish different orientations of obstacles. 3: Buzzer reminder, when the obstacle is closer, the alarm will be faster. Specification: 1: Rated voltage: 12V DC 2: Rated current: 100mA-300mA 3: Ultrasonic frequency: 40KHz 4: Control module operating temperature: -30-80 degrees Celsius 5: Display working temperature: -20-70 degrees Celsius 6: Sensor diameter: 22mm 7: Installation method: drilling For each order product, we will be responsible for testing and packaging to ensure that high-quality products can be delivered to you quickly. when reversing the car, it will start the rear 4 sensors and the front left and right 2 sensors, a total of 6 sensors to assist driving when driving the vehicle to brake, the four sensors in front of the vehicle will be activated to prevent collision and collision. When you release the brake, the reversing radar will work for about 15 seconds before it stops to help you pass through the obstacle environment smoothly The information displayed on the display is quite rich. Through different numbers and light bars, the position and distance of different obstacles are displayed. The numbers, light bars, and sound help the driver to park better. There is a good protective film on the monitor, please tear it off before use!