Features: 1,Completely water-proof and shock-resist,built-in silicone layer,super imported aeronautical aluminum body ,premium military grade hard anodized coat,10 meters free fall without damage. Suitable used in harsh environment. 2,Storage:60,000 records 3,USB Communication:no need to install USB driver,high speed data download. 4,Power:3.6V lithium battery,rechargeable 5,Light and buzzer to ...