I have purchased those earphones for my commute to listen to music and my audio books. I am not specialist in music accesories, but what I like they do not make my ears ache as some of the other designed or the earphones you get with your iphone. Also no matter how loud my music is, it doesnt disturb other people on the train ( always plus).They're good value overall Sound quality - I couldn't hear any noticable problem with the sound. Music and audiobooks comes through very clearly. I think these are great "middle range" earphones and I am very happy with them. As I managed to lost them two days ago I am re-ordering exactly same model.