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by komali2 3527 days ago
It would have to be an audio device that has that little "ring" of audio in. Sorry, not knowledgeable in this field, someone smarter will be able to clarify, but I've noticed that my headphones that don't have a mic capability have less little "separator" rings on the 3.5mm jack, whereas the ones that do have mic capability have more.

Also your solution seems... excessive...