Accurate Location: GPS and LBS double location for accurate position.</br>Anti-lost: After registering your smart watch in the phone?? you will receive a alert remind from your phone if the watch is taken off from the child. However?? please keep the APP on line any time anywhere?? otherwise function will fail.</br>SOS Help: In case of emergency?? press the SOS button over 3 seconds?? then the watch will send a distress message to the guardian.</br>Two-way conversation: Users can talk to each other?? you can set three family numbers real-time call.</br>Notes: The watch only supports GSM network. It will NOT work with CDMA network.AT&T?? T-Mobile?? TracFone?? CincinnatiBell?? StraitTalk offer GSM network.Please make sure that you use the above carriers' SIM card.Otherwise the watch will NOT work.Please inquire your mobile telecom carrier which network "offers before buying if you do not know which network system.</br></br>Product Description</br></br><b>Accompany your children any time any where!</b><br><br> ??<b>???Voice Message</b>??<b>???Watch Tracker</b>??<b>???Emergency Alarm</b>??<b>???Time Monitoring</b><br><br><br> ????<b>Health Manager</b>: Record kids' steps?? calories and distance. Sports data available?? program a healthy life for your loved little one.<br> ????<b>Sleeping Monitoring</b>: Record kids' turnover times. You can check the related data through the APP.<br> ????<b>Electronic Fence</b>: Set up a safe zone?? receive alert if kids go far.<br> ????<b>History Route</b>: Keep route for 3 months?? record your kids