Music & Video Playback: Connects Headphone, Earphone, Speaker, Trrs 4-pole Mic Or Aux Cable With A Standard 3.5 Mm Audio Plug To Your Usb-c Phone/ipad Pro/tablet/pc/mac's Thunderbolt 3 Port/socket. Only Support 4-pole Trrs Microphone (Trrs Plug Has 3 Black Rings), Not For Ts Or Trs Microphone.
eBay