... base station(SMS/GPRS/TCP/UDP)4: Can tracking by the PC/ platform, mobile phone and SMS ... .PC/ platform tracking: ~Real time tracking, get the watch's position online. ~Tracking playback ~GEO-FENCE function ... GEO-Fence alarm, low battery alarm.Mobile phone tracking: ~Suit Iphone and Android OS smart phone, you ... ~You can monitor/Listen the sound around the tracking watch by SMS. ~You can let the ...