.Theft evader(TM) helps defeat auto theft with state-of-the-art electronic technology! It quickly connects to a vehicle's ignition harness and safety by-pass to disable the starter system. It's simple, too. No button sequence to remember! When the individually coded key is removed from the receptor, the starting mechanism disengages, and the whole system automatically locks. The vehicle can't start without the individually coded key. So a thief can't start the car-even if he has the ignition key! Special designed valet feature: engine continues when electronic key is removed after vehicle is engaged. If you do not want your car moved once it is parked by a valet, remove the theft evader(TM).