Hey Easy on the cops! there is no radar detector out there that will help you. These companies that sell these things just want your money. My dad is a chp officer. He told me radar detectors are useless, because the CHP has a new thing called bounce protecter. It works by taking the signal from the detecter in your car, and bouncing it back there for tricking it. You will just here one beep and then it will turn off your unit. (OOPS I just gave it away) Anyways keep an eye out, and drive safe. The po po will be watching.