The GPS tracking key is a small device that you can mount on anyones car or person and track their location, distance traveled, how fast they drove, where they stopped, etc. for up to 2.5 meters accuracy on real time programs like Google earth. Devices like this have been used by Hollywood for years, but the time for personal revenge and espionage has come. However, just to cover their own bases, it is not to be used for “unethical purposes”.