DRIVER ALERT

Vehicle reversing aid and backup warning systems, namely, ultrasonic object detectors for use on vehicles with an audible tone in conjunction with either a digital display or an actual human voice that either digitally displays or talks to the vehicle operator and states, in feet and inches, how far an obstacle or a person is from the rear of their vehicle while they're backing up, namely, ultrasonic echolocation sonar detectors with sensors that attach to the rear of a motorized vehicle to alert drivers that a person and/or object is behind their vehicle in a defined area