<b>Model:</b> O-Mei Stars Y3 Fitness Tracker<br><br> <b>function:</b> Calling, Phone calls reminding, Audio player, Time display, Heart Rate, Calories burned,Sleep Monitor,Pedometer, Alarm clock, and so on<br><br> <b>Color:</b> Black<br><br> <b>Screen:</b> 0.96" Color Screen<br><br> <b>Control Method:</b> Point-touch key control<br><br> <b>Charge Time:</b> 2 hours<br><br> <b>Normal Use Time: </b> 96 hours<br><br> <b>Talk Time: </b> 4.5 hours<br><br> <b>Bluetooth:</b> Bluetooth4.1<br><br> <b>System requirements:</b> IOS&Android<br><br> <b>Interface:</b> MICRO USB 5V <br><br> <b>Package Included:</b> Bluetooth Earphone*1, the Base of Earphone*1, User Manual*1, Certificate*1, Charging line*1<br><br> Any question, please don't hesitate to contact us.<br><br><br> <b>Instructions for use</b><br> <b>How to Charge the battery?</b><br> Take out the headset from the base, there is a USB port. Charge it will USB table. Please fully charge it about 2 hours before use.<br> <b>How to take out the headset?</b><br> Press 2 physical buttons of the base simultaneously, the headset will pop up automatically.<br> <b>How to put on headphone?</b><br> Press and hold the black half ring of rubber on the earphone, then put it into the ear.<br> <b>How to open the Bluetooth of headset pair headset with mobile phone?</b><br> After take out the headset from base and wake up the screen, long press MFB key which is in side of the headset, you will see headset icon flicker on bracelet. It means Bluetooth already been opened but not been connect; open mobile phone system setting--Bluetooth--searching connect, find "Y3" on mobile phone, click connect. When headset icon flicker on bracelet will not flicker, it means Bluetooth between mobile phone and bracelet already connected.<br>