Helps Driver Lane Changing Safely During Driving, With the Aid of 58KHZ Ultrasonic Sensor, Two Ultrasonic Sensors, Two Blind Regions Monitor (or LED Light), With Buzzer and the Wire Harness, Perfect Connection of Ultrasonic and Computer, Integrates Blind Spot Detection and Reversing Assistance, High-speed Frequency Sensors for the Left-rear and Right-rear of the Vehicle, Buzzer Warning Indicators for the Right and Left Side, Universal Blind Spot Monitoring System, BSD Function: Blind Spot Detecting System Function, LCA Function: Lane Change Assist, RCTA Function: Rear Cross Traffic Alert Function, Type: Universal Blind Sport Monitoring System (BSM), Electricity Voltage: 12V, Maximum Power: 5W (max), Working Temperature: -40℃ ~ +85℃, Storage Temperature: -40℃ ~ +85℃, Waterproof Level: IP67K, Detection Range :0m – 5m., Detection Range Accuracy: ±3cm, Product Dimensions: 3.47'' x 2.36” x 11” -inches