Just for the record, radar detectors, which ever model you have and price you pay, can not give you full protection from police, because they work only when police radars are on but can't protect you from policeman and their free judgement if you are speeding even if their radar is not on,so be carefull.From my experience, radar only protects you from getting stupid(10 and up) tickets in the city zones. also if you are buying radar with jammer, wich is ilegal in whole 48 states, police can bust you because they have gadget "spectra 1" that can detect at and you are definetly going to the prison, so good luck!!!