2 colors 7 brands new LED display; Stage by Stage sound alarm; Volume control switch; Antifreezing Function Separable display and cable Specification: Working voltage: DC12V± 2V Input: 5W(max) Beeper: 80dB Working temperature: -40o C to +80o C Frequency: 40KHz Detection distance: 0.3-2.0m Parking sensor Collocation: Control box, sensors, bi-bi sound and aiguille Functions: 1) Intelligent all-direction color display distance and directions 2) Two different sound systems indicate front and rear obstacle distance accurately 3) Multiple-angle sensor detecting obstacle distance accurately 4) Working well in good and bad weather, strong anti-disturbing circuit design for excellent safety and performance 5) Super slim embedded design 6) Various colors and types sensors for choice, efficient detecting distance with 1.5 meters 7) 3-digital with 3 colors 7 lights display the distance 8) the indicator light direct the left, middle and right Detector type: Drilling or stick-on Sensor number: 2~8 pcs On backing the car, the rear sensors detect obstacles behind the car automatically Stage-by-stage Bi Bi sound alarm to avoid colliding Versatile detection range Sensor types for optional