any jammer won't work, they all say they do, but there's no way it can effect their laser pick-up unless you send them a signal to mix their up. which i doubt its even available. but anyway. don't depend on detectors anyway. if your the first in a line of cars, or no one else is around, you will get busted. because it only works if you pick up the radar thats being shot at someone else and you slow down before he hits you, but if no one is around, the first time he shoots will be at you, and it will be too late.