... (3) Track by sms and pc online WT100 GPS Personal Watch Tracker, GPS tracker for Eldly, child ( by SMS/GPRS)GPS ... Watch Tracker for Child/Elderly people2-Way talking and voice monitoringSOS ... 's low power alert;10. Monitor the voice remotely;11. Watch-like design, portalbe, small size. AccessoriesWT100’s main unit (1pcs ...