... precisely, Be widely applied in safeguarding vehicle,old,child,Pet,and managing personel; Track covertly etc. Advantage:1. Locate conveniently: ... as well.2. Slim, self-contained (built-in antenna and battery) , easy to carry and hide.3. Low power consumption, long standby of ... original anti-theft alarm warning.1.12 Modify the IP and Port of Communication Protocol for different on-line positioning ...