On to the ANC then and to be honest its not the best Ive heard by some way - its just not strong enough compared to other (more expensive sets) but its fair to say it does the job just about well enough. General observations:- Since my old keyboard was low profile and was a membrane keyboard, I needed a bit of practice to get used to the feel. These shoes were very comfortable even for the twelve hour shifts. I just used the screws since its resting on my oven for support. For what this product costs long term, it is a TERRIBLE investment. Everything functions on it (play, pause, etc) just no sound. the gold . Otro punto sería que para el uso diario le faltan los magnetos para que no anden muy sueltos los audiculares. The sound quality is good Unless you buy expensive products, the sound quality is almost the same. Of course Amazon is taking care of the issue but after reading the other reviews again Im wondering if they made this Limited Edition one specifically to put out there with lesser quality and hopefully people wont notice that its crap - even for a discounted price.