Enjoy your favorite music and movies with a 3.5mm jack adapter between the earphone and iPhone, No APP required. Unlike other adapters on the market, it has built-in Bluetooth connection allow you to receive and make phone calls. Made from the high-quality material will offer clear crisp sound quality for a better experience. Easy to use, support for iOS 11 and above. Just turn on Bluetooth on your phone and plugin and play. Come with a one-year limited factory warranty. Perfect adapter design for iPhone 7/7 Plus, iPhone 8/8 Plus, iPhone X. !! Make SURE Connect to Bluetooth !!