LandAirSea Magnetic Wireless Pocket-Sized GPS Tracking Key Pro System Small pocket-sized design allows for portability and covert placement GPS tracking accuracy of 2.5 (7 feet) of the device Powerful magnet mount allows for installation inside, outside or underneath the vehicleLogs the driving speed every second, showing the maximum speed driven for the day The data is compatible with the popular Google Earth application Works with Windows 7 (does not work with windows 10 or MAC) The data is compatible with the popular Google Earth application GPS tracking accuracy of 2.5 (7 feet) of the device