1.LCD display
2.Threebackgroundalarm 

colors
3.Direction indicator
4.Voice indicator

5.insert-in sensors optional
6."DangDang" alarm sound
7.2 front sensors, 4 rear sensors

Technical Data:

1. Rated Voltage:12V

2.Operating Range: 9～16V

3.Rated Current:20～200mA
4.Detection distance:0.3~2.5m
5.Ultrasonic Frequency:40KHz
6.Working Temperature:-30～＋70