Feature:1. Adopts a blind spot detection system featuring one transmitting and multi receiving.2. IP67 dustproof and waterproof makes it free to work normally under circumstances of poor visibility (such as rain, fog, night).3. Independent action system with no need to connect OBD.4. Installed on both sides of the back bumper to ensure invisibility.5. 4-in-1 function: blind spot detection warning（BSD), lane change alert（LCA), rear cross traffic alert（RCTA), door opening warning.6. LED light will blink and the buzzer will alarm when the turn light is on and there is vehicle in blind spot.7. After starting the vehicle, BSD system would start-up and LED light will turn on when there is vehicle in blind spot.8. Widely application and universal for all 12V vehicles.Specification:Condition: brand newItem Type: Blind Spot Detection SystemMaterial: ABS + LED Detection Range Accuracy: 0.1Maximum Detection Range: 15Meters/49.2ftWarning Range: 3-15Meters/9.8-49.2ftSystem Warning Accuracy: 0.1MWarning Method: Sound & lightIP Rating: IP67Warning Time: Minimum warning reaction time 0.75secRated current: 130ma±50maWorking Voltage: 12VWorking Frequency: 24GHz-24.25GHZLevel Angle: Frequency emission 42x80Speed Range: -20m/s~20m/s, 72MWorking Temperature: -45°C~85°CPackage List:2 x BSD Sensor 2 x Notifiers 1 x Buzzer 4 x Wiring Harness2 x Install Bracket8 x Bind 1 x Probe Feet8 x ScrewNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.