Flew with a guy who had "ear bud" type headphones. Every time he swallowed you could hear him over the intercom and it sounded like you were inside his head. Really really irritating on a long day. I believe he gave them up after suffering ear infections. I use DC ANR headset in a 737 and generally don't even turn on the ANR now they're so good. Bulky, yes, dead comfortable with glasses, yes. I always preferred a headset where the ear cup went around the ear (DC) as when wearing glasses or sunnies headsets that sit on the ear tend to press the bar of the glasses between the headset and your head. Maybe I've got an odd shaped head though!