Mobile GPS /GSM Tracker for personals and pets: GPS with GSM, Super small & Very easy to operate Item:Mobile GPS /GSM Tracker for personals and pets GSM / GPRS indicatorsGSM 900M/1800M Dual or 850/1900 DualGPRS class 10,GSM:-102dBm,DCS:-100dBmGPS Sensitivity-159dBmOperating temperature-20°Cto+70°CStorage temperature-40°Cto+85°CStandby time180HButton and indicator lightTurn on / Turn offEmergency ...