The sound is really hammer, sit perfectly on the head and you get from the outside world nothing more with whether bus or train. Even the squeal of electric motors I get not even with the new commuter trains, and I do not hear loud music.
What must I say you need no batteries, why I have bought, wanted the studio but the Battery charging me was an eyesore. And so the more expensive Pro are not, since the additional cost and the short time is worth saving for. These are headphones that you buy only once in life.
No press and drag, which is also loud low function on the headphone cord handy. And the sound is truly unique, it takes a lot a lot a lot more sounds was as elsewhere, even at my favorite songs I hear new sounds, so it seems to me.
So the department is really to know, here you can buy something for eternity.
MfG