Features: 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 System_x000D_ Material: PVC, metal_x000D_ BSD System:_x000D_ 1) Detection Distance: 0-5m/0-16.40ft_x000D_ 2) Detection Accuracy: 5cm/1.97in_x000D_ 3) Working Frequency: 58KHZ 2KHZ_x000D_ 4) Waterproof Grade: IP67_x000D_ Controller:_x000D_ (1). Working Voltage: 10.6V-16V_x000D_ (2). Working Current: Less than 90mA_x000D_ (3). Working Temperature: -30C~+80C PackageList: 1 x Control box 2 x Probe 1 x Buzzer 1 x Main Harness 2 x LED Light 2 x LED Light Extension Cable 1 x Manual 1 x Hole Opener 6 x Cable Tie 1 x Sticker