Function & characteristics: 1.Wireless technique: Without cable connection between control unit and display, high ratio of technique and price，more convenient and quicker to be installed 2.Double CPU control: Not influenced by environmental temperature,high stability & anti-jamming,good precision. Super detectable distance: 3 meters long distance can be precisely detected with superiority to traditi -onal reverse radar of 2 meters 3.Luminescent ultrasonic probes: Sole patent technique. When running at night with night-lights open, the ultrasonic probes will emit circular blue-white rays or red rays. Thus enhances the vehicles decoration , the tail vehicles are at the same time reminded to keep space. 4.The newest display mode: The display adopts the VFD fluorescent liquid crystal, can tell the dynamic reverse process, distance showed & voiced simultaneously, with sounded alarms of dong, dong, do ng, the displaying clearness and grade is extremely high.