Product Details  toughest phone in the world,waterproof,dustproof,with altimeter, compass,barometer,thermometer,super cool for outdoor activities  This mobile phone is designed gor military use,engineering ,outdoor activities like a cool, special mobile phone. It's the toughest phone in the world, With hardened rubber molding case via dual injection ,you  can even drive a car over it .it passed the 2M drop test. the mobile phone is impervious to the wettest weather and water proof grade is IP54,it can work  in extreme conditions(-20-+60c),  On its backlit LCDscreen, the LM801 displays direction ,altitude ,barometric pressure and  temperature readouts. The compass, barometric pressure,and altitude functions of the pruduct  are assigned to a single button with easy switching .The highly sensitive altitude sensor  responds even when you move the product up and down. The separate torch light and laser  ponter buttons are standby at your fingertips whenever you need it. The phone is equipped with a  1300AH battery, the standby time is 450 hours (lab test), further more with our specially designed  manual charger, you can get power anywhere, any time !