... even drive a car over it .it passed the 2M drop test. the mobile phone is impervious to the wettest weather and ... , the LM801 displays direction ,altitude ,barometric pressure and temperature readouts. The compass, barometric pressure,and altitude functions of the pruduct are ... a 1300AH battery, the standby time is 450 hours (lab test), further more with our specially designed manual charger, you ...