• Two-way Communication: The watch can be inserted into a Sim card to call or receive incoming calls, and children can communicate with their parents anytime and anywhere. • Location: The watch have multiple positioning way (GPS, LBS, or Wi-Fi). Parents can track their children's location in real time through the APP. • Voice Chat: Watch and APP can send messages to each other to enhance communication between children and their parents. • Pedometer: Watch will send steps information to APP, reco