I use them for videoconferencing: MUCH better than monitor headphones or earbuds! First - you still hear what's around you: - no way to miss a postman calling - no way to get into a situation when your kids shout on the background, you don't hear them in your monitor headphones - but others on a VC perfectly do Second - you keep your voice down as you actually hear yourself. Bonus - with multi-point pairing you can simply stand up from your laptop, get outside and start listening to music/podcasts from your phone with no additional actions needed.
Do not block environment sounds
You almost don't feel them
Music quality is of course lower than with conventional headphones