100% global iridium satellite coverage enables 2-way text Messaging from anywhere (satellite subscription required). Trigger an interactive SOS to the 24/7 search and rescue monitoring center – track and share your location with Family and friends. Pair with mobile devices using the free earthmate app for access to downloadable maps, U.S. Noaa charts, color Aerial imagery and more. InReach Explorer+ Device adds preloaded DeLorme topo maps with onscreen GPS routing. Plus built-in digital compass, Barometric altimeter and accelerometer. BUNDLE INCLUDES: InReach Explorer, 2.1amp Dual USB Car Charger, Compact Deluxe Gadget Bag, Floating Wrist Strap, Screen Protectors, 6ft Micro USB Cable, Universal LED Screen Cleaner.