Detailed description of the product:
1.Digital LED showing obstacle distance;
2.Wireless function,There are not any wire between the main box and the display,DIY install;
3.LED display three colors(red,yellow and green);
4.Alarm by BI BI sound;
5.Crescent shape digital display screen;
6.Voice on/off optional;
7.All kinds of sensor colors and styles are available;
8.High quality and easy to install;