... Dual Sim,Four Band Sport Module: Digital Compass,thermometer,barometer,altimeter and laser light. waterproof ... damage from falling off.2.Digital Compass, Altitude, Barometer and Thermometer suitable for outdoor activities.3. ... Mobile AntennaFM AntennaExternal (Pull Type)Battery1400mAhOutdoor FunctionsSupport Thermometer, Barometer, Altimeter and CompassLED Touch LightSupportLaser PenSupportExternal ...