my-handy-design 1 Wired-Cell-Phone-headsets, 9.8 x 7.1 x 7.7 inches EASY TO USE LIGHTNING EARBUDS EARPHONES-- Since this lightning earphone is a Bluetooth connectivity version.You need to open the Bluetooth on your iPhone fIrstly ,connect your lightning earphone with your iPhone, and clicklightningon the other devices on your Bluetooth interface manually .(It will connect automatically the next time when you connect your earphone with your iPhone in few seconds If your Bluetooth is open) It has perfect stereo sound quality, enjoy full listening comfort with soft, snug ear buds that conform to your ears, bring you the perfect audio enjoyment. Ergonomic and ultra-lightweight in-ear designed with solid sound-insulating material, reduces external noise while minimizing the sound leakage, giving you clear sound. The cord was built in a in-line controller and a high quality microphone, the controller was designed to play / pause music / next track / previous track / answer phone calls / hang up phone calls. Compatibility with for iPhone 7 / 7 Plus / 8 / 8 plus / X. Support all the iOS systems. If you have any question, please feel free to contact us.