Kids phone watch has all functions you need: GPS Tracker, Phone call, Voice Chat, SOS, Wi-Fi, Anti remove sensor, Pedometer, Alarm, Class Mode, Language of each country, Adjustable screen brightness, It is suitable for children aged 4-12. This kid’s smart watch with 4G WIFI LBS GPS real-time positioning. It's also can check location history through the day. Know where your kids are anytime. When the child is in danger, press and hold the SOS button for 3 seconds, the GPS watch will automatically call and send information to the preset 3 phone numbers, which is very helpful to the child in an emergency. You can make calls or voice chats with your children anytime, anywhere, It is the best mobile phone substitute. When children are in school or in the classroom, parents don't have to worry about their children's smartwatch disturbing them. Parents can set time periods in Do Not Disturb mode. This feature will disable all functions except SOS emergencies. This is a kid’s smart watch with GPS tracker, just insert your SIM card and activate the package function to use it. Turn off your watch before inserting a SIM card. If you have any problems during the watch setup process, please contact us via email, and we will actively solve the problem for you.