New parking sensor system 1. compatible with any cars 2. automatically detecting obstacles once reversing gear is activated 3. super wide detective angle prevents side impact 4.LED direction indicator of left, middle and right 5.4 sensors available in various colors and size for customer to select 6.simulative in three colors 7. waterproof sensors work well under severe weather and temperature condition 8.high sensitivity 9.BiBi alarm sound Technical parameters: 1.Rated voltage: 12V DC 2.Operating range: 9-16V 3.Working temperature: -30 +80°C 4.Rated current: 20 200mA 5.Ultrasonic frequency: 40kHz 6.Detective range: 0.2 2.5m 7.Size: 127mm*12mm*9mm