This is Dual Lightning Adapter/converter which allows you to listen to the music and charge your compatible with iPhone simultaneously any time you want. Support IOS 11/12 and later. Using this compatible with iPhone earpods adapter one can adjust volume when listening to the music. You can use this headphone adapter for telephone or FaceTime conversations. Support 3.5 mm devices. Product Concept: compatible with iPhone 7/7 Plus, compatible with iPhone 8/8 Plus, compatible with iPhone X / Xr / Xs / Xs Max have only 1 lightning interface for headphones or charge . This dual lightning adapter is an excellent decision to use both at the same time Unique and functional Design: Perfect solution for charging your compatible with Apple compatible with iPhone and listening to music at the same time using the dual lightning splitter (Does support Calling function and Music control, Support iOS 11 and iOS 12). Efficient transmission and stable signal : 100% Copper wire core offers Nondestructive digital sound quality and ensure the stability of the transmission. You just need to plug and enjoy much clear and fidelity sound quality Wide compatibility:More other compatible with apple lightning devices supported. It is also compatible with the Lightning to 3.5mm Headphone Jack Adapter to work with your other headphones Compatible with IOS 11/12 and later. Using this 2 in 1 lightning adapter one can adjust volume when listening to the music. You can use this 4 in 1 earbuds adapter for telephone or FaceTime conversations.