This is the parking aid that alerts drivers when an object or vehicle is within close proximity of the rear bumper. The easy-to-install device mounts over a car’s existing license plate frame and uses a pair of ultrasonic sensors to detect obstacles. It connects via Bluetooth to a smartphone and uses a free app compatible with iOS and Android devices to warn the driver of potential bumps using visual, audible, or vibrating alerts. With an 18" to 10' range and a built-in anti-theft alarm. Fits over standard 6" x 12" license plate covers. Includes smartphone mount, license plate mounting hardware, and two AA batteries. 12" L x 6" W x 1 1/4" D. (1 1/4 lbs.)