You can track this watch's location in real time anywhere anytime even it is in another country!It is not only a watch, a GPS tracker, also a mobile that can make phone calls!Our YouTube vedio about how to use: youtu.be/KyUs3mbZ6WwIf you want a GPS watch that can be worn in shower or rain and with text feature, please buy this one: www.amazon.com/dp/B07MPT3R68?ref=myi_title_dpIMPORTANT: This watch supports 3G network, while most GPS watches on Amazon support only 2G network. 2G network is going to be shut down in USA, and you must get this watch with 3G compatibility that works perfectly everywhere in the US.Frequency Supported: 3G: 850/1900MHz(AT&T/Speedtalk/etc.)Product Functions:1, Realtime Tracking(GPS+WIFI+LBS Multiple Positioning Modes)2, Phone Call & SOS Emergency Call3, Historical Route Track(Footprint Record)4, Electronic Fence Alarm(Geo-fence)5, Remote Voice Monitoring(Listen in)6, 1.54 inch Touch Screen7, Camera: Support photo taking8, Step Counter, Silent Mode for School Time, Low Battery Alarm, Voice ChatHow does it work:1, Insert a micro SIM card(supporting 3G network, with data plan and call function) inside the SIM slot on the GPS watch2, Long press the power button to turn on the GPS watch3, Download the Application in your mobile, login with the watch unique ID number and password 123456 as default (you can change the password later in the application)4, Reminders:(1)It is very important to turn off the watch before you insert SIM card into it.(2) You can track multiple watches at the same time, please contact us, we will help you realize it(3) If you want a GPS watch that can be worn in shower or rain and with text feature, please buy this one: www.amazon.com/dp/B07MPT3R68?ref=myi_title_dpPlease kindly note: If you need to use this watch outside the United States, please contact us for another version.