Function Features:
1.This function will start automatically when reversing.
2.Audible/ voice warning available.
3.Detect the actual distance  with digit number.
4.Full angle screen with three color to display different obstacle lecation.
5.Two modes for optional,in and meter;mute and audio.
6.Universal direction adjuster between the display and the base to adjust any direction and location freely.
7.All weather design(-30°C ?? +80°C).