I asked my friends a couple of times when we had calls and some Discord conversations. No problems reported even when I was on a windy street at that time. I'm yet to see the spectrogram of their input, but I listened to my voice messages and they were fine. Obviously, not an all-purpose mic that can record music, but with a range of freqs that covers our speech it works no worse than industry standard, with airpods, dots and others. I even used it, stealthly, to record some IRL talks, just in case, and the result was clear. Their not-very-noticeable nature helps it.