LandAirSea Magnetic Wireless Pocket-Sized Tracking Key Gps System with Four FREE Batteries Logs the driving speed every second, showing the maximum speed driven for the day. Logs the precise GPS location, date and time of every stop Software animates the car driving over a digital street map. Displays location, date, and time of every stop. Records the driving speed, every second. Shows you the maximum speed driven for the day.