Description: The multi-function GPS tracker with SOS alarm. Warn you with SMS message when the vehicle starts to move from a stationary status. You can use it to track everything you want to master . With compact design, convenient SMS functions and the latest in GPS tracking technology, it is the one all-purpose tracker for everyone needing to track their valuable asset and loved ones. The device with functions: *Real time tracking *History tracking playback *Vibration alarm (When ACC is off, the thief hit the car door or window, will send alarm to platform and administrator ) *Over speed alarm *Acc ignition detection *Cut circuit alarm function *Sleep model *Mileage statistics *Cut oil or circuit (Option, need Relay) *SOS call function (Option, need SOS wire) *Voice remote monitor (Option, need Micphone)