1.No need to run a wire from the front of the vehicle to the car rear,it is wireless between the display and control box,the sensors are connecting to the control box.                                                                    

2.Numeral and color LED display,with buzzer built-in   
3.Alarm by three step Bi-Bi sound                                                                                

4.Left and right digital show obstacle indication                                                      

5.Measuring the distance by sensors,with detected distance from 0.3-2.0m for rear  
6.sensors can add waterproof connector,easy to replace when defective                                        

7.Working Voltage: 12V DC,Working Temperature: -40 ～ +80℃                                                                        

8.Display size:  96*27*20mm