The Garmin inReach Explorer SE+ Satellite Communicator with GPS is a handheld device for staying on the grid while spending time in remote, off the grid places. Whether you're off on a weekend hike into the mountains or spending months on trail or water, your mom will probably be worried. This device will not only help you navigate via GPS, but allows you to track and shAre your location with her and all your friends. With a satellite subscription, you can even 2-way text from anywhere, so get up on that cliff. Features of the Garmin inReach Explorer SE+ Satellite Communicator with GPS Handheld Satellite Communicators with GPS Navigation 100% global Iridium satellite coverage enables 2-way text messaging from anywhere (satellite subscription required) Can trigger an interactive SOS to the 24/7 search and rescue monitoring center Track and shAre backcountry locations with family and friends on the web-based MapShAreA(R) portal ShAre progress with friends and family by sending route selection to MapShAreA(R) portal Request weather forecasts for current location and planned destination Send and receive messages with other inReach users, exchange locations Send and receive text messages to SMS and email Virtual keyBoard for custom text messaging BluetoothA(R) wireless compatibility 2 GB memory / history storage High-sensitivity receiver USB interface Water rating of IPX7 is suitable for splashes, rain and Snow, showering, and incidental exposure to water of up to 1 meter for up to 30 minutes Pair with compatible mobile devices using the free EarthmateA(R) app for access to downloadable maps, U. S. NOAA charts, color aerial imagery and more inReach Explorer+ device adds preloaded DeLormeA(R) TOPO maps with onscreen GPS routing plus built-in digital compass, barometric altimeter and accelerometer Comes preloaded with a 1:24k map of Garmin Yarmouth (Former DeLorme) North America data of the U.S. and Canada. Mexico also is included at a 1:125k scale (derived from Garmin Yarmouth's Digital Atlas of the Earth). PLEASE NOTE that preloaded DeLorme TOPO maps Are not compatible with other Garmin devices, and other Garmin maps not compatible with this device. Has the ability to add more maps 500 waypoints, favorites, and locations Send waypoints to MapShAreA(R) portal during trip 20 routes Dimensions of 2.7in. x 6.5in. x 1.5in. with keypad and SOS door bump Battery life up to 100 hours at 10-minute tracking mode (default); up to 75 hours at 10-minute tracking with 1-second logging; up to 30 days at the 30-minute interval power save mode; and up to 3 years when powered off Rechargeable internal lithium ion battery Tilt-compensated 3-axis compass Weighs 7.5 oz (213.0 g) Includes inReach Explorer+ Preloaded with TOPO, USB cable, carabiner clip, and documentation