VFD Display Parking Sensor High Quality and Competitive Price CE, FCC Approved ... the car.2.Bi Bi voice warning.- Show distance by VFD(Variable Frequency Drive) display.3.Embedded detector sensors which ... with 2, or 4, or 6, or 8 sensors.5.Wireless parking sensor,then it is no need to run a ... the vehicle,also save labour cost.6.Speaker car parking sensor,it can tell you the alarm distance in english ...