https://www.ebay.com/itm/USB-C-to-3...e=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649
There's some similar models with similar look. All functions work (audio out, microphone in, play/pause/call, volume). Also, such adapter works with V20 and Sony Xperia XA1 Ultra (change USB mode to audio in Developers Option).
Regular USB speakers and USB sound card also work through USB C to A female adapter.
Notice: these audio adapters draw power from your phone. Unplug when not in use.
There's some similar models with similar look. All functions work (audio out, microphone in, play/pause/call, volume). Also, such adapter works with V20 and Sony Xperia XA1 Ultra (change USB mode to audio in Developers Option).
Regular USB speakers and USB sound card also work through USB C to A female adapter.
Notice: these audio adapters draw power from your phone. Unplug when not in use.