Feature: 1. Blind Spot Detection: No matter day, night, or even in heavy snow, as long as there are moving objects popping out of the rear of the vehicle, when the LED lights are on or flashing, you can get an alarm. 2. Feature: The vehicle speed signal is detected and analyzed by two radar probes on the rear bumper to understand the distance, speed and direction of movement of the vehicle behind. 3. Alarm: When a vehicle is detected approaching in the blind spot, the indicator flash, and when the driver is about to change lanes, the system will send out an alarm, reminding the lane change is dangerous. 4. Accident Prevention: Can prevent traffic accidents caused by potential hazards such as bad weather, driver negligence, blind spots in the rearview mirror, novices, etc. during driving. 5. Parameter: Detection range lateral distance: 0.3m‑5m; rear distance: 5m. When the system is turned on, objects in the blind zone 10 x 50 feet behind the vehicle are detected. Specification: Item Type: Car Blind Spot Monitoring SystemMaterial: PVC, metalBSD System: 1) Detection Distance: 0-5m/0-16.40ft 2) Detection Accuracy: ± 5cm/1.97in 3) Working Frequency: 58KHZ ± 2KHZ 4) Waterproof Grade: IP67 Controller: (1). Working Voltage: 10.6V-16V (2). Working Current: Less than 90mA (3). Working Temperature: -30°C~+80°C . Package List: 1 x Control box2 x Probe1 x Buzzer1 x Main Harness2 x LED Light2 x LED Light Extension Cable1 x Manual1 x Hole Opener6 x Cable Tie1 x Sticker