In-vehicle Dog Tracker and GPS Navigator-Pairs with Astro® 430 and Alpha® 100 dog systems to navigate the way and track your dogs from your vehicle-Displays roads, trails and dog locations on a bright 7.0-inch pinch-to-zoom display-Includes preloaded TOPO U.S. 100K mapping and 1-year Birds Eye Satellite Imagery subscription-Detailed road maps of North America with free lifetime map¹ and traffic² updates-Road mapping gives spoken turn-by-turn directions, plus driver alerts for sharp curves, speed changes, school zones and more