Just like the product advertised about 10 years ago, it was supposed to be able to kill an automobile electrical system from behind the runaway automobile electrical system. This can be used on an overzealous officer when the officer thinks the car in front didn't pull over because the driver had music playing too loudly and couldn't hear the siren behind him, and some officers think they didn't stop. immediately. The police go ahead and zap someone's electrical system. The car continues and the car has no power.