Garmin DriveTrack 70 LMT in-Vehicle Dog Tracker and GPS Navigator with Lifetime Maps and Traffic for City Navigator Road Maps, and TOPO U.S. 100K Mapping View dogs location - receive and view dog positions on the large 7.0-Inch pinch-to-zoom display Plus monitor your dogs statuses in the field Preloaded mapping - includes preloaded topo U.S. 100K mapping, a 1-year birdseye satellite imagery subscription and detailed road maps of North America Navigation Features - includes free lifetime map and traffic updates, driver alerts for upcoming sharp curves, speed changes, Bluetooth hands-free navigation and more Additional mapping - includes Micro SD card slot for additional mapping such as Garmin huntview maps (sold separately)