It stopped working within two weeks. Turns out, the fuse had blown on the cord. I waited over a year before I put it in my next car. It picked up a cop going the other direction on the freeway between AZ and CA fairly well... but I saw the photo radar van about a block and a half away and had already slowed before the detector picked it up. It was on highway mode in the city, and it never went above one bar while picking up the van. Not the greatest detector out there.