This merchandise is In Line With previous model GPS103B add Dual sim card slot, TF SD card slot,Configure parameters by means of USB cable & Instrument,Improve Fuel sensor, Control Automobile door open / close remotely Specs Community: GSM / GPRS 2G: 850/900/1800/1900MHz GSM / GPRS Module: SIMCOM340 Removable Microphone Operation Temperature: -20 to +55 Level…