>With voics buzzer indicating distance by its beeping frequency
>Turns on automatically when car is put on reverse gear.
>Fit any make of car or vehicle,van,caravan,tralier and horse boxes.
>Sensors are waterproof and shockproof ,anti-false alarming
>All kinds pf sensor colors and styles are avaible
>Human speaking warning is optional
>Can choose sensor number:2/3/4/6/8
Can chosse human voice,or bibi alarm
Voice can be High/Low