FUNCTIONAL CHARACTERISTICS：
1：THE RADAR WILL WORK AUTOMATICLLY WHEN BACKING BACKING A CAR
2.DETECTIVE RANGE: 2-0.3 METRES
3.ALARM RANGE: 1.5-0.3 METER , THE ALARM WILL BECOME QUICKER WHEN THE DISTANCE IS GETTING CLOSER.
4:THIS DEVICE WILL DO NO HARM TO THE ORGINAL ELECTRONIC SYSTEM
5.2-4 DETECTIVES TO BE CHOOSEN
6.ADOPTED BY INTERNATIOAL STANDARD WITH A GOOD QUALITY