to 3.5mm Audio Adapter, Jackiey Adapter, to 3.5mm Female Headphone Jack Adapter Cable Converter for iPhone 7 / 7 plusSilver High rate transmission and clear sound quality: built-in multi-decoding digital chip makes it possible to transmit audio signal steady in high speed. 100% Copper wire core offers Nondestructive digital sound quality, you are able to more arbitrary to listen to music and video audio tracks.