Parameter: Product Type: Children's Smart Watch Material: Silicone Color: pink, blue Support: LBS, Low Power Solution, Telephone, SMS Alert, ect. Operating System: MTK GSM Chip: MTK626ID GSM Frequency: 850/900/1800/1900MHz Watch language: English or Russian (Option) App Language: English,Russian, Germany, Turkish, French, Italian, Portuguese, Spanish, Dutch, Thai, Greek Functions: real time location; Phone book; Voice chat; History route; phone book; Healthy pedometer; Remote power off; Safe zone; SOS for help; location ways; Alarm remind; Forbidden in class; Two way talking; Camera; Flashlight; Monitoring (wiretapping); Packing List: 1* Smart Watch 1* Charger 1* Retailed Box How To Use: 1. Scan QR code on the packing box or directly dowload the app from your phone's app store. 2. Download the APP "Setracker" and Register Account. 3. Scan or enter into the device ID. Each device has only one unique ID, it can be only be used once, and it is the access to connect between watch and phone. ( if it notify the ID was registered during you login, please contact us to reset for you. ) 4. Choose language and server location. After you scan the device ID and fill into the account name and password. You got to choose the language and server in you area before you finish it. ( here please make sure to choose the correct server location, or lead to the "device offline" during position. ) Note: You need have a right sim card, also open the 2G data flow function for internet and calling function. ( note: not all sim card fit this watch. ) Due to manual measurement, there may be slight dimensional deviations.Please allow chromatic aberration due to the different shooting light, angle, and monitor.