Send interactive SOS alerts anytime, globally. Use two-way messaging to connect with the ones who matter. Let loved ones know exactly where you&';re at with location tracking & sharing. Get connectivity with your other Garmin devices. Get weather updates in the backcountry. Use the Tracback Routing feature to get back to your starting point the same way you came Get accurate heading information - even when you&';re not moving The internal, rechargeable lithium battery gives you up to 14 days use at the default 10-minute tracking mode, & up to 30 days with a 30-minute tracking interval Free access to cloud-powered Garmin Explore website for unlimited cloud storage & trip planning