Attention:1. Note: This is 2G GPS Tracker, only support 2G sim card. ( Its said Austrlia, Singapore, Mexico, Canada & USA will stop 2G service since 2017. )2. The Topin Official Service platform:www.365gps.net Android application:365gpsi OS application:365gps Login ID:IMEI number, Default Password:1234563. QR code scanning access The client for the Android & i OS phones can be downloaded after the QR code has been scanned.4. Preparation before use Check whether the device model is correct & whether the accessories are all in readiness. Select the SIM card of the GSM network by referring to the advice of your distributor. (Turn off the cell phone first before installing the SIM card) The GPRS function & the caller ID display function should be subscribed for the SIM card. Install the APP client onto your cell phone. Please consult your distributor about the detailed information on the APP client.5. Product functionl Multiple Positioning Mode: GPS+ AGPS+LBSl Worldwide GSM+GPRS 4-frequency System: 850/900/1800/1900 M Hzl Automatic Time Update: Precise GPS time service & no manual time adjustment is neededl Track: The users specific location can be inquired through the cell phone APP or the computerl Fence: Designate an area on the map by setting the device as the center point & the alarm will be triggered off immediately once the user of the device goes into or out of this areal Play Back: Inquire the moving routes of the device in the past 3 months anytime & anywherel SOS