Main technical parametersSupported Frequency Bands: GSM850MHz/900MHz/1800MHz/1900MHzNetwork connection: GPRSRFID: 2.45GHZ+13.56Mhz (si ou vle)Location Services: supports GPS, LBSGPS sensitivity: -159dbmGPS positioning: 10 metersLBS positioning accuracy: 2-100 metersAntenna: Built-inBattery specifications: 1150MAHVoltage: 3.7VStandby average current: < 10mAOperating temperature: -20°C ~ + 60 ° CHimidite: 20%~80%RHTheoretical talk time: 150minTheoretical standby time: 128hVoice Dialing: Not supportedHands-free calling: YesWristband Color: Blue/Red/Yellow-Green/Brown-OrangeWeight: 80gMemory: Wi (si ou vle)Voice Push: YesLow Battery Alarm: YesOne-touch dialing: YesTime Tips: YesAlarm Alert: …