sounds good, and the price when i bought is unbeatable! but the earbud is quite uncomfortable.if you press tight into your ears, you can't fit it for a long time and must have a rest after 20min. otherwise, i may feel a little bit sour in my ears. like other people said: Loss of bass if the earbuds are not fitted tightly.
hopefully Amazon will have such great deal in the future for IE80 so that i can try it ^_^