Accident from Rear lateral side prevention. When object is on blind spot zone, the warning lamp keeps on.When driver make turn signal without knowing the object exist, the warning lamp blinks and the warning buzzer rings. The item "Blind Spot Assist Warning LED Sensor Light Back Up Alarms For MERCEDES BENZ" is in sale since Monday, December 2, 2013. This item is in the category "eBay Motors\Parts & Accessories\In-Car Technology, GPS & Security\Dash Cams, Alarms & Security\Anti-Theft Car Alarms". The seller is "finedayshop" and is located in KMP. This item can be shipped worldwide.