SPOT Gen 3 is a compact, rugged handheld personal tracker that supports location tracking and check-in/ok reporting as well as help and duress functions. SPOT Gen 3 is delivered complete and ready-to-go. SPOT 3 uses 100% satellite technology to give you a critical, life-saving line of communication when you travel beyond the boundaries of mobile coverage. SPOT 3 lets family and friends know you're OK, or if the worst should happen, you can send emergency responders your GPS location - all with the push of a button. Wherever you go, track and share your adventure - and stay safe! • Alarm Buttons: OK (sked), Custom, Help, SOS, Tracking • Compact and easy to use • Battery powered - 4 AAA 'off the shelf' Lithium Batteries • Let family and friends know where you are and that you're OK • Track your journey to relive your adventure later • Share your adventure with online maps • Send GPS coordinates to Emergency Responders in the event of an emergency • Line power with a 5v USB connection. (SPOT Gen 3 is not waterproof when line powered) • Enhanced Tracking plan options WORKS WHERE MOBILE PHONES DON'T!