car redar distance sensor with LED display 4 pcs parking sensor with voice alarm for distance Color of sensor optional 1,Numeral and color LED display 2, human voice3,Left and right obstacle indication 4,Numeral display from 2.0m to 0.3m 5,Display unit with built-in buzzer 6,2,3,4 sensors for option7,Display size: 96*27*20mm LED parking sensor with voice alarm(English voice alarm)