Features: 【Two Modes Positioning】Real time accurate location of kids by advanced GPS+LBS(Base Station) positioning, easily checking the position at anytime anywhere. 【2G Communication Mode】Insert 2G SIM card, you can talk to kids at anytime. It can be set 10 phone numbers, and only these numbers can dial to the watch. 【Emergency Call】In case of emergency, children can long press SOS button, and watch will auto dial 3 SOS numbers in turn until get connected. 【Remote Voice Monitor】Allows setting monitor number, when confirmed the watch dial the monitor number, the phone can monitor what is happening around the watch. 【Precise Positioning】You can real-time check the watch’s location via the mobile phone APP map to know the position where the kids are. 【Two-way Voice Communication】The watch and mobile phone can realize voice chat, both phone APP watch can send voice messages. 【Electronic Fence】Settable activity range(up to 500m), it will alarm when watch is outside of the range. 【Anti-lost Alarm】Supports watch remove alert, once the watch is removed from wrist, it will alert and send message to monitor number and send notification to phone APP. 【Other Functions】Pedometer, Sleep Monitor, Remote Turn Off, Award for Warm Heart, Historical Route Tracking, Watch Alarm, Seek the Watch, Low Power Alarm, Time Display, Alarm Clock, Incoming Phone Call Firewall, Make Friends Function, etc. 【Wide Compatibility】Suitable for IOS 6.0 above, or for Android 3.0 above. 【Safe Material】Solid ABS case safe and comfortable food-grade silicone band, environmental protection and non radiation design, no harm to children.