4pmla 3.5mm AUX Audio Earphone Connector Extender Jack Stereo Headphone 3.5mm for audio listening and Lightning connector for charging iPhone and iPad You can charge your iphone 7 and listen to music with a earphone at the same time 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 High quality Aluminum alloy oxidation shell is more wear-resisting and corrosion resistance