Bluetooth Headphone with Microphone,Fourcase Earphones Wired Earbuds Sports Handset with Noise Canceling Sweatproof Compatible with IP XS/XR/XS Mas,IP X/7/7 Plus/8/8 Plus High performance sound qualitySuper dynamic deep bass high resolution treble & crisp powerful sound. It has perfect stereo sound quality, enjoy full listening comfort with soft, bring you the perfect audio enjoyment. Volume ControlThe cord was built in a in-line controller and a high quality hands-free microphone, the controller was designed to play / pause music / next track / previous track / answer phone calls / hang up phone calls. Humanization DesignErgonomic and ultra-lightweight in-ear designed with solid sound-insulating material, reduces external noise while minimizing the sound leakage, giving you clear sound.Extremely lightweight design you wont be painful to your ears after a long-time wearing. Design for SportProfessionally Designed for music listening requirement In running jogging weight lifting walking and gym training. Universal headset shape match most people's ears.So they will not fall or break even during intense outworks. How to Use Earbuds As this earphone is a Bluetooth connectivity version .You need to open the Bluetooth on your Phone ,connect your earphone with your Phone, and click the device on the other devices on your Bluetooth interface manually .(It will connect automatically the next time when you connect your earphone with your Phone in few seconds If your Bluetooth is open )