You should buy a additional GSM network's 2G SIM card with GPRS function.Triple mode positioning :GPS +WiFi +LBS (Base station positioning).check the position at anytime anywhere.; .Achieve all day real-time location tracing ,check the position at anytime anywhere . You can track the location via SMS,website and mobile APP.
Two way communication:Can be used as a cellphone and call each other at any time; Remote voice monitor: The watch need to set monitor number firstly.After give voice monitor command ,dial to monitored number.This is one-way talk. When in conversation, the speaker of the watch is disabled and does not make any sound.
SOS emergency call: If your kids are in danger just to long press SOS key for 3s. It will display SOS on screen.Watch will be on alert state.Circular dial 3 SOS numbers for two turns.it will stop when call answered. If not, it will continue until the two turns over.Watch can send message to monitor number .Also, send alert notification to APP,which increase the security of your children (you can set 3 alarm number).
GEO Electronic Fence:Set an area in advance ,if your kids go out of the area,it will alarm which ensure your kids'security.
Alarms system: SOS alarm, low battery alarm , take off alarm(And with the special tamper-proof strap, an alarm immediately occurs if anyone attempts to cut off the wrist.