1. Automatically engages as soon as you place your car into reverse.
2. Show distance by Rainbow-LED lamp/LED display, Bi Bi voice warning
3. Embedded detector sensors (which requires installation into your rear bumper).
4. High-techprocessing, Omnidirectional detector sensor, Beautifullinetype figure.
5. No need to run a wire from the front of the vehicle to the rear. Just connect the sensors and control box at the back of the vehicle. And mount the display unit at the front - all it needs is a 12V power supply.