... power saving, these functions are also very especial, and the object shock & move alarm, big capacity long life(1-7 days, standby ... polymer battery (2000mAH), over area alarm, over speed alarm, emergency SOS help, these functions are useful.With GPS and GSM, the tracker sends the ... sensor can be used as car shock & move alarm- User visit website and logon and then tracking the car or display the history ...