They don't support the mic over wired connection which is unfortunate, as even apple products are limited to pretty bad mic audio quality over bluetooth.
I realized this issue when I replaced a set of wire/bluetooth headphones with a new pair, and noticed the mic quality was way worse, even when wired. It turns out my old ones had a wired connection for the mic, and my new ones always use bluetooth for the mic.
After googling a bit, I found there's still no high quality microphone audio profile inside bluetooth, even after all these years.
Yes, I don't think any wireless headphones on the market get around switching to HSP during phone calls and switching back to A2DP when music/audio resumes.
I realized this issue when I replaced a set of wire/bluetooth headphones with a new pair, and noticed the mic quality was way worse, even when wired. It turns out my old ones had a wired connection for the mic, and my new ones always use bluetooth for the mic.
After googling a bit, I found there's still no high quality microphone audio profile inside bluetooth, even after all these years.