... voice 3.High class package Tongyi Car Wireless parking sensor wireless parking sensorItem name: TYS8500A wireless parking sensorProduct: Car Parking Sensor System, Auto Parking Sensor, wireless parking sensorSpecification: No display Step-up Buzzer ... .HIDetective distance from 1.8m to 0.3m2,3,4,sensors for option Technical Specification:Rate voltage: 12VRated current: 10mA~150mADetection ...