I have awkward ears so the only earphones that I find comfortable for more than 30 mins are these. There isn't a bluetooth version of them, so when I got a new iPhone I couldn't listen to audiobooks while I walked the dog anymore. But I have just found out that bluetooth receivers exist, and now I have this (which is much tinier than it looks in the photos).
Of course I wouldn't have needed it if Apple hadn't take away the headphone ports in the first place, but still I'm very happy now.