GreatWall Earbuds BT Wireless Earphones With LED Digital Display, High-Fidelity Sound Quality, Ultra-Long Life Earbuds, Suitable For Fitness And Running, High Sound Quality, Anti-Falling Earphones, Suitable For Android And IPhone

Any problem or question, just let me know , we will must give you best service There is an insulating film on the head of the headset that needs to be removed to charge. After receiving the product, please charge it for 1-2 hours, and then connect it to your cell phone After connecting the first cell phone, you need to ignore the device on your cell phone's BT device before you can connect to other smart phones.