car parking sensor system 1. passed CE, DOT, TUV, etc 2.45 colors of sensor for your choose 3.Digital LED display with buzzer car parking sensor system with led display, buzzer, camera,rearview mirrorFeatures: 1. passed CE, DOT, TUV, etc2.45 colors of sensor for your choose3.Digital LED display with buzzer built-in4. sounds with "bi bi"5. 4 sensors support, 2 ~ 8 sensors are also available6.water ...