Even better, if you put that earbud back in it then continues playing in both ears - which makes it a perfect intuitive enhancement of the physical actions you'd already take to talk to somebody while you have earbuds in.
The battery life is also rubbish, they regularly fall out of my ears and they don't work with my (non-Apple) MP3 player.
Giving credit where it's due, though, the microphone quality for phone calls is exceptional given the orientation and how far away they sit from your mouth.
Otherwise, I really don't get understand why these things are so popular (which just shows how little I know about consumer goods and marketing). Mine were gifted to me, but mostly go unused for the reasons above. I probably wouldn't complain if they were $50 a set, but I'd never dip into my own pocket for whatever obscene amount they cost now ($200?).
I had a coworker who used them for calls and he talked me into buying them. Once I started using them I realized how much I enjoyed using them over wired headphones and how well they worked compared to other Bluetooth devices, especially older headsets.
The only negative for me is that the Pro model didn't exist when I bought my Airpods, and the regular model has poor sound isolation--fine if you are at home, in a office, etc., but terrible on the street or on a plane.
(so I agree, they're great IF you're already using at least the iPhone).
These hurt my right ear slightly. The audio sometimes stutters. Sometimes the battery drains in one very quickly but not the other, or there's some other bug causing the audio to go out in one ear. Putting them in and taking them out of the case is awkward. Keeping them charged is a responsibility.
The $8 wired earbuds I had before never had any of these problems. And I was never worried about losing them. I saw them being wired as a pro, not a con. I'm going back to those. I can't believe anyone pays $250 for these. I couldn't believe paying $50.