Thanks for the info! I will check those. Ok, didn't know about that limitation. I will edit the needed features. Can you suggest some without considering the "no power" requirement? Thank you very much!

Sorry, it's not that I'm cheap. The thing is that I'm from a country where buying in usd and importing is really expensive. I need this for work, I'm not an audiophile. My workplace doesn't provide them, so i'm not willing to use a lot of my salary for them. Any other tip would be appreciated...

I'm looking for headphones with some of this qualities: 1) Looks: I'd prefer headbands that are almost perfectly round like the ones in the photo below. Shallow ear pads would be nice, too, but not a must. 2) Wired. It can have bluetooth, but I need to use it with cable. 3) Active noise...