I bought these headphones to use on a cross-country flight for work, since I wanted a good pair of noise-cancelling headphones. I really enjoyed them, they are very comfortable, and enclose my ears completely. The noise-cancelling function works really well, it made the engine noise disappear, and I was able to enjoy the movie I was watching without turning the volume all the way up.Great headphones for the money. I would definitely recommend them. check the products HERE : http://boseworkout.com