36-Hour Battery Life & IP66 Rating: IP66-rated for protection against splashes, rain, etc. Rechargeable battery can provide up to 36 hours of battery life in all satellite systems Track Back & 3- Compass: This handheld GPS records your exact route and guides you back along the same path. The built-in 3- compass shows accurate heading even when you're standing still, so you stay on course Multi-GNSS & Barometer: Connects to GPS, , QZSS, and BeiDou satellites for for improved position accuracy, especially in challenging terrain. The barometric altimeter tracks elevation, with sunrise/sunset times for smarter trip planning 3.2" Sun-Readable Screen & Flashlight: See maps clearly in bright sunlight on the large color display. Use the built-in flashlight to light your path or as an emergency signal in low-light situations, Manufacturer: Littimoon