... goods,elder,kid,employee,businessmen,outworker,pet,travller,lover,students vehicle gps tracker factory Product DescriptionGeneral: Based on GSM/GPRS ... . Basic Operation: Insert SIM Card into GPS Tracker, use mobile phone to call this SIM number, you will get message ... , Tracker Covert Tracking//GPS tracker, Tracker //GPS tracker, GPS vehicle tracker, GPS car tracker, cargo tracker, mini tracker, kid ...