Bluetooth Headphone Compatible iP 7, Fourcase Earphones Eaubuds Wired Headset with Microphone & Remote Control Noise Canceling Sweatproof Compatible iP XS/XR/ XS Mas,IP 7/8/X/7 Plus/8 Plus How to Use EarbudsAs 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 Earphonedevice 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 ) 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. 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. Ergonomic designUniversal headset shape match most people's ears.Ergonomic design allows for ultimate wearing comfort,you wont feel hurt even for an whole day wearing. Sweat ResistantBuilt for your active lifestyle - these earbuds are rated IPX Level 6 and can withstand dripping sweat.Great for your active lifestyle like running, jogging, cycling, driving, camping,hiking, gym exercise and other outdoor sports.