Bullet Points:1.Warning Signal: The blind spot aist system is prophetic. When a vehicle is detected in the blind spot area, the exterior mirrors will illuminate with a red triangle.2.Works Well in Most Conditions: Whether on the highway, rainy day, foggy day, or night rearview glare, this Blind Spot Detection System Kit will aist you to change lanes safely3.Precise and Sensitive Detection: 24GHZ millimeter-waves radar with high sensitivity, high stability, and high-precision algorithm has a wider detection range (large-scale detection of the rear of the vehicle)4.Safe Driving: Radar Blind Spot System keeps you safe while on the road. It avoids the poibility of side crash accident when lane changing, turning, and backing up.5.Easy Installation: This Blind Spot System is easy to install, with no complicated tools required, and convenient to use. Installed on both sides of the back bumper to ensure invisibility. Feature: 1. The exterior mirrors will illuminate with a red triangle if a vehicle is detected in the blind spot area.2. No worries about rain, fog, or night rearview glare.3. High sensitivity, high stability, and high-precision algorithm.4. A great vehicle auxiliary equipment helps the driver safely drive and avoid side collisions.5. Widely applicable to DC12V sedans, compacts, SUVs, MPVs, pickups, etc. Specification: Name: Radar DetectorSize: about 25*20*7cm|9.84*7.87*2.75 inchesMaterial: ABSApplicable models: car universalDetection range: 10 metersProduct function: Parallel auxiliaryAlert Type: Active AlertPacking List:Radar Detector*1 Specifications:Cord length: about 10 inUse: prompt lightMaterial: LEDOperating temperature: -25+75(-13167)Net weight: about 25gApplicable models: universalVoltage: 5V, 12VPacking List:2* Prompt Light Notes:1. Due to the different monitor and light effects, the actual color of the item might be slightly different from the color which is showed in the pictures.2. Please forgive a slight measuring deviation due to manual measurement.