Stop worrying about being within range of a cell tower. Go ahead andtravel the entire globe, and Garmins inReach Explorer+ will always keep you in contact because it directly accesses the Iridium satellite network, which boasts worldwide coverage. You could be deep in the jungles of Bolivia and exchange text messages with any cell phone number or email address anywhere on earth. In case of emergency, its inReach function lets you create an SOS message that contacts a 24/7 GEOS emergency response center, and you can text back and forth about the nature of your situation and receive confirmation that help is on the way. If you want your loved ones to always know your exact location, you can turn on the tracking function, and they can watch your progress on their computers or mobile devices using the web-based MapShare portal. For maximum convenience, the free Earthmate app can sync your inReach Explorer+ with your Apple or Android cell phone for unlimited access to detailed maps, aerial imagery, U.S. NOAA charts and more. The Earthmate app also delivers inReach weather forecasts for your current location. If your adventures span the globe, youll appreciate the full-fledged GPS on-map guidance, preloaded TOPO mapping, waypoint routings, built-in digital compass, barometric altimeter and accelerometer. Impact-resistant and tough unit is IPXY water-rated. Internal, rechargeable lithium battery. Includes a micro-USB power cable. 6.5H x 2.7W x 1.5D. Wt: 7.5 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Satellite Communicators.