Parking Sensors with Built-in Installation as Original Configuration On starting power supply of the car, the front distance detection system On entering range, the rear distance detection system works automatically Four to eight detectors design, omni directional with no dead angle Colorful LCD, indicating distance in number, three colors and seven Unique designed alarm for obstacles in front of the car, when the distance Built-in installation as original configuration Use super fault-proof technology, accurate and reliable Special manufacturing, guaranteed quality