Note: Watches And Wirless Charger Has A Little Color Difference Features: 1.Product Dimension: Dia 40*15.8Mm 2.Product Weight:56G 3.5 Buttons,One Button For Power On/Off,Sos Button,Three Family Number Button 4.300 Mah Li-Ion Battery,Standby 80 Hours 5.Invisible Phone Watch,Care More About Safety Problem 6.Gps,Monitor,Support Sim Card Comprehensive Compatible With Ios And Android Smart Phone 7.Wireless Charger 8.Package Inculding 1X Smart Watch,1X Simcard Tooling,1X User Manual,1X Wireless Charger Statin,1X USB To Micro Charging Cable 9.Material:Pc Case & Import Silicon Rubber Band 10.Need To Use The Screw To Open The Back Cover To Put The Micro Sim Card And Get The Iemi Number. 11.Before The Watch Work Together With Mobilephone,Need To Enter Imei Number As Id Numbe, (1)Open The Back Cover Of The Watch,Imei Can Be Seen,You Can See The Picture In The Attached,To Show You Where Is The Imei Number; (2).Send Message "6" To Kids Watch Phone Number,Imei Number Will Be Sent To Mobilephone. 12.The Kids Watch Support 2G Network Gsm 850/900/1800/1900 Simcard,If 3G Network Simcard,It Will Automatic Drop To 2G,But Need To Buy Wcdma 850/900/1800/1900 13.This Kids Watch Could Not Support 4G Sim Card,Just For Phone Talk And Gps Tracker,30M Monthly Use Are Enough. 14. Could Not Write All Europe Telecom Apns Into The Smart Watch Software,If After Activated Simcard But The Gps Could Not Located And Smartwatch Offline, Need To Send Message To Set Up The Apn.If Need Set Up Apn By Manual,Please Contact Us To Show You How To Manual Setting Up The Apn15.Position Location Error: Watch Indoors Are In Lbs Positioning Mode, There Will Be 500M About The Error, The Error Is A Normal Value. Outdoors, App Default Gps Open, Within 10 Minutes,It Will Automatically Switch To Gps Positioning Mode, High Accuracy, Error 50M About. 16.Please Contact Us When You Have Any Problem During The First Using.