If you own one of these....your a smart driver! If you own one of these....you have a heavy foot! If you own one of these.....its probably paid for itself already. this is one of the original ones. ive had this for about 12 yrs and it works excellent. it is acting up at times and just keeps alerting of up to 8 radar signals at a time. currently doing it in the picture. I also have the more slim line new one.