The laser detectors on the road angels are pointless because it will only go off if you are being directly pointed at and by then its too late the officer has already got your speed! Snoopers are a little bit better as they can pick up laser scatter so if the car in front is being targeted it will let you kno but they give out way too many false alarms best just get a road angel and do away with the laser bit, but now days you could buy a Tom Tom sat nav and put the cameras on that so it will do all the road angel can ( warn of fixed cameras) and also navigate you all over the counry all for t