Automatic activation when the reverse gear is chosen 3-color backlit display ( blue/ purple/ red) changes to show different alert ranges Car icon and digit showing in LCD display to indicate different distances and orientations of the obstacle Voice alert, beep alert, mute mode, system on or system off and different mode are selectable Full– weather design, un-affected by wind, ice, snow and rain Suitable for 2/ 4/ 6/ 8 sensors 6 or 8 sensor system, complete front and rear protection Universal for all cars