when I'm listening to something on my phone, which is a lot... few hours a day probably, but that's a matter of convenience, not preference. I don't really get this audiophile IEM craze personally, I associate in-ear buds with fairly disposable, uninspiring sound. They never seem to have the airy soundstage of good open-back cans, they usually to require a lot of nudging to maintain a seal for me, and many of them aren't that comfy to have on your ears after a while.