I had never perceived a headset with such good material. What to invest in beats of money in the package is clearly invested in Sony in the product. The headphones are absolutely comfortable and made for my ears. After a while you forget that one has ever headphones in your ears. Even sport is with the MDR-ex650 no problem sitting perfectly and firmly in the ear. What the sound As I would have been evaluated according to the reviews here bass-heavy. For my taste, it could be a little more even here. I use them on my Nokia Lumia 930 and the control function on the PPT button works properly even if no Windows Phone support is suggested on the package. I can recommend as almost all the previous speakers unreservedly these headphones. For me only one question remains open. Had it done even more favorable MDR 450? After all, these are only half as expensive. Anyway I am very satisfied and will hopefully enjoy these headphones for a long time