The Uniden DFR7 is a top-of-the-line Radar Detector with a built-in GPS feature. You can now mark geographic points where you commonly encounter radar transmissions. These can be school zones, red-light cameras, and places where police frequently monitor traffic. Among other features, the Voice Notification feature lets you know when you are approaching a radar and what type of radar it is (red light, speed, etc.). The DFR7 keeps you safe and fully informed on the road.