AtlasMNS GPS Navigation is one of popular product from Bruton, a Wyoming-based (USA) outdoor gadgets manufacturer. Powered by a dual processors, this small device comes with an atlas, barometer, altimeter, and a digital compass, exactly everything you need to survive in the wild environment. Measures 5.8 x 2.6 x 1.3-inches and weighs 7.0 oz, it can predict the weather for the next 12 hours, as well as keep track of the past 36. Furthermore, this waterproof satellite navigation system runs on 2 AA batteries which lasts for about 12 hours when using continous GPS mode, or up to two weeks for digital compass usage only.