... Main feature: 1,GPS tracker with waterproofshell 2,build-in shock sensor 3, large capacity battery Product Description: Model: GPS104This ... device11,Input Power: 12V-24V DC12,GSM/GPS LED indicator13,Authorized number added and deleted function14,Support hidden ... software tracking. 4,Web server online tracking Car GPS tracker with waterproofshell build-in shock sensor large capacity battery,