I have been using the Bose OE2 Audio Headphones for about 3 years now and I feel they are the lightest most comfortable headphones I own. What I like most about these headphones is that they are true to the original recording and mixing process. I find that these phones don't enhance sound, but replicates exactly the sound the artist had in mind. With that said I find after listening to countless albums in many different genres these phones have extremely clear vocals. I am also blown away by the sub bass' clarity because a lot of headphones either produce too much or none at all. On a couple of occasions I have used these headphones in the gym and felt that they were light enough to do a little jogging and snug enough to stay on when bench pressing. The only downside I have come across with these phones is that the memory cushions compress a lot after about a hour of listening and it feels like my ears are resting directly on the speakers. It doesn't affect the sound, but it hurts the top of my ears. I still would recommend the Bose OE2 Audio Headphones because they are light, easy storage, comfortable up to a limit, and most importantly great sound.