iNassen Compatible Jack Adapter, Adapter for Phone X 10 Phone 8/8Plus Phone 7/7Plus Dual Adapter Audio Headphone Adapter.with Call & Audio & Charge Function.Compatible - Support iOS 11 Multi-function: You will be able to charge your phone and listen to music with a headphone / earphone at the same time using the adapter Efficient transmission and stable signal : 100% Copper wire core offers digital sound quality and ensure the stability of the transmission. You just need to plug and enjoy much clear and fidelity sound quality High-quality material to ensure charging speed: Using high-tech materials imported from Japan to make sure long lasting using and fast charging. Durable metal shell design:High quality Aluminum alloy oxidation shell is more wear-resisting and corrosion resistance, enhancing the anti-interference ability. You can put it into a backpack or handbag relievedly if you often go out. Service and warranty  We provide a 3-Month Worry-free warranty.If you have any questions , please dont hesitate to contact us.