"Whether you're hunting the backcountry or hiking a new peak, find your way with the Garmin GPSMAP 64sx Handheld GPS with Navigation Sensors. The durable construction boasts an IPX7 water-resistant rating so you don't lose the ability to navigate when the weather turns south, while the push-button operation is easy to use, and the 2.6"" sunlight-readable color display is simple to see in all conditions. Preloaded TopoActive maps with routable roads let you find routes for backpacking or bikepacking and offer turn-by-turn directions on roads. A high-sensitivity receiver with quad helix antenna pair with support for GPS, GLONASS, and Galileo to ensure precise tracking, even in heavy cover. Built-in 3-axis compass and barometric altimeter. Bluetooth and ANT+ compatibility let you pair with sensors and share data with compatible Garmin GPS units. Runs off 2 AA batteries (not included) for up to 16 hours in GPS mode. The Garmin GPSMAP 64sx Handheld GPS with Navigation Sensors includes 8GB of storage and accepts up to a 32GB microSD card for additional storage.Manufacturer model #: 010-02258-10. Durable construction with an IPX7 water-resistant rating Simple push-button operation Easy-to-read 2.6"" sunlight-readable color display Preloaded TopoActive maps and the ability to load additional maps Routable roads for turn-by-turn directions High-sensitivity receiver with a quad helix antenna Uses GPS, GLONASS, and Galileo 3-axis compass and barometric altimeter Bluetooth and ANT+ compatibility 8GB of storage, accepts up to a 32GB microSD card"