Experience reliable navigation with our device equipped with a dual GPS and Beidou system for precise positioning in various environments. Measure sea or climbing height accurately with the altimeter and barometer, and stay informed with historical records and trend charts.Enjoy comprehensive features including a thermometer, hygrometer, pedometer, flashlight, and weather forecasts. The sporty design, lightweight build, and easy-to-read display make it an ideal gift for outdoor enthusiasts. Features: 1.GPS & Beidou dual navigation system, double satellites location, ensures more accurate navigation. 2.Multi-function, it shows many important data such as altitude, climbing speed, compass, atmospheric pressure, time, temperature, humidity, etc. 3.Supports USB charging, easy to use, large capacity battery can offer long standby and working endurance. 4.Equipped with a mini torch on the top, can offer illumination in emergency, also suitable for night outdoor activities. 5.IPX4 grade waterproof, portable and lightweight, easy to carry and pratcial to use. 6.User-friendly, with many function buttons on the side to makes you quickly change mode or search for data. 7.Widely applicable to many uses, hiking, climbing, camping, etc. Specification: Material: ABS Color: Yellow&Black Waterproof: IP44 Size: approx. 100*66*20mm / 3.9*2.6*0.8inch Weight: approx. 126g Package List: 1 x Multi-function Barometer 1 x USB Cable 1 x Manual 1 x Lanyard