... Parking Sensor System details: 1,Numeral and color LED display 2, Step-up buzzer alarm 3,Left and right ... built-in buzzer 6,2,3,4 sensors for option 7,Display size: 132*25*22mm LED Parking Sensor ... . 2. Show distance by multi-functional ultra-thin VFD display, Bi Bi voice warning. 3. Embedded detector sensors ... rear. 7. Speaker can be embedded in the display housing. 8.6-sensor model, 8-sensor model ...