Blind Spot Detection: The wired backup camera for cars with 4.3" monitor carrys with a excellent blind spot detection, automatically recognizing the auto or passersby behind your vehicle when on driving or parking, featuring motion detection and auto-alarm beep function that promotes a maximum security for your car, any time of the day or night. With operation on the monitor, you can turn on/off BSD function to match your needs, calibrating or setting the alarm sensitivity at Weak/Medium/High. Excellent Design: The back up camera for car is made of ABS+PC metal raw material with 4.3 inch LCD display monitor, easier to use than 7 inch and 5 inch. The image is more focused and clearer, and the display won't look bulky or block the driver's view in front. Its suction cup bracket is made of ABS+TPU material, with 360° rotating design, more stable than normal bracket to mount the display on dashboard or windshield, and won't melt and fall off even after long time use and sunlight.