Build-in GPS personal locator. Works worldwide! * GSM/SMS communication or GPRS TCP/UDP connection. * High sensitivity, New technology and latest GPS SiRF-Star III chipset! * Excellent for fixing the position even at a weak signal status. * **Note: 1 User name of PC installed version: admin. password: admin 2 Web version should register by yourself. IMEI Password: 123456. Only fit for GSM-SIM.