【Plug & Play】Before using please activate the phone's Bluetooth, then insert the headphone into the Phone, a pop-up window will appear in a few seconds, please click ''Connect with iCloud''. The second or later insertion of the phone will automatically connect. 【Multi-function control】The headphone cable comes with a microphone and controller. A single multi-function button allows you to answer/hang up calls, play/pause, skip and replay songs through the headphone. No need to take out the phone. The built-in microphone allows you to talk hands-free. 【High-Definition sound quality】In-ear headphones provide high-definition audio quality, reduce noise, reduce external environment disturbance, and provide a high-quality audio-visual environment. 【Comfortable Wearing Experience】Ergonomic and ultra-lightweight in-ear designed with solid sound-insulating material, active reduce ambient noise for an incomparable audio experience. 【High-quality after-s service】If you are not satisfied with the headphones after receiving them or during use, you can contact us and we will try our best to provide 24-hour assistance to solve your problem. Age_Range_Description: Adult