Features Accurate Location: Uses LBS base station location for accurate positioning. Safe Incoming Calls: After setting SOS family numbers and contacts in the app, the watch only receives calls from approved numbers. Children can press the SOS button to call you. Walkie-Talkie: Enables voice conversation between the smartwatch and the app. Send voice messages from the app or record messages on the watch to send to the phone. Love Reward: Send hearts from the app to the watch, with related data viewable in the application. History Route: Query your children's historical activity paths by selecting a time period. Find The Watch: If the watch is nearby, send a command to make it ring for one minute to help you locate it. Press any button to stop the ringer. Message Alerts: Includes low-battery and SOS reminders. Remote Shutting Down: Remotely control the smartwatch through the app. Quick Learning: Children can play sample mathematical games on the watch. Flashlight: Features an LED flashlight for use when needed. Specifications: Frequency: GSM 850/900/1800/1900MHz Body Memory: 32MB+32MB Applicable System: For IOS and Android Screen Size: 1.44 Inch Waterproof Level: IP67 Waterproof Wireless Distance: Unlimited distance Mode of Operation: Touch Screen and Button Tracker Model: LBS base station tracker GSM Positioning Accuracy: 50-200 meters Speed Accuracy: 0.1 meters per second Battery Capacity: 3.7V 400mAh SIM Card Type: Micro SIM Card Weight: Approximately 0.12kg Package Included: 1 x Kids Watch with box (Without SIM Card) 1 x User Manual 1 x Charge Cable