1.Automatically engages as soon as you place your car into reverse
2.Digital LED showing obstacle distance
3.Show distance by LED display, real voice
4.two-side, three-color digital indicator
5.Alarm by buzzer (Bi Bi)
6.Colorized LED screen
7.Simulative vehicle models, showing direction
8.2~4 sensor are available
9.All kinds of sensor colors and styles are availabie