Samsung S 20 Note Plus Ultra 5 GB for all its fancy stuff (at €1500! ) is utterly useless with all generic USB C headset dongle & only after 2 hours with tech support did we realise that only the Samsung PROPREITORY USB C dongle works. Of course Samsung Store Ireland DO NOT stock it nor can they get it for me. UK Samsung can't post it to Ireland & only Amazon UK & these chaps could get it for me. They were not as fast as Amazon prime but delivered it with no cost P&P.