CFSAC is designed specifically for travelers. Fast and easy With the most elegant design and the fastest startup, application includes gps compass, speedometer, altimetr,Course Flashlight, Strobe mode with the controller. 1. Brightest Flashlight -- Switch On/Off button -- Strobe mode with controller. 2. Compass -- Shows device real-time orientation to magnetic fields. -- Ability to switch between true and magnetic North. 3. Location -- Location coordinates (longitude, latitude). -- Course -- Speed -- Altitude -- Ability to switch between mph, feet units and kmh, meter units.