B Adapter Headphone Jack compatible with iPhone 7/8/X, 3.5 mm Headphone Jack Adapter compatible with iPhone 7/8/X Accessories Compatible with all types of 3.5 headphones. Plug and play, no extra software needed. You just need to plug and enjoy crystal clear sound quality. Allow you to use your existing 3.5mm headphones with the new iPhone 7/ iPhone 7 Plus /iPhone 8 / iPhone 8 Plus / iPhone X. Exquisite and pocket-friendly design. Polished stainless steel headphone jack seamlessly embedded in lightweight aluminum chamber; Free 3.5 plug key ring, keeping track of where your adapter is, to stop you losing your Adapter. Easy to take your music with you any where. With this simple adapter, you can use your favorite headphones all the time. 12 Months Warranty, 30 Days Money Back Guaranteed. Risk free buying.