... :OV 1/3 -inch Color CMOS Certifacate: CE&ROHS LED parking sensorFeatures:* Totally 6 kinds of sensor for option: A, B ... : black, white, red, green, silver, yellow, blue and purple* Display: wireless communicate with brain unit by radio and 7 light LED ... : 78dB* Many models and specifications are available Hot sell visible wireless parking sensor