I use these headphones for monitoring and mastering field recordings at home. They are comfortable. They don't exert excessive pressure on the head and the headband is designed to keep them seated right.

Reliability

I originally bought a set of 4 K240df headsets for my studio 10 years ago and through all of the abuse that goes on in a rental studio they are all still working. The thin cable is a lot more durable than it looks.

The first thing I liked/noticed was the appearance of these headphones, they look like retro studio headphones. They sound really clear and you can hear sounds that you can't in other headphones. Also seem kind of too flexible but after a few months of using they haven't came close to breaking.

I hunted this model because of these curious DF specification. I was lucky to get one second-head really cheap. I read about harsh mediums and shallow bass, and that striked me at the first time I tried the K240 DF.

The K240S is an odd beast. It's not hi-fi by any means. The bass is big, boomy, and not particularly well-extended. The highs are somewhat recessed and don't convey a whole lot of detail. The sound is akin to a fat black woman shaking her booty on the dance floor. Not a lot of refinement...

Pros..brand new ..detachable cord... Cons .. Sound quality ..noise cancellation..

Had this recommended online as a cheap alternative to high quality studio headphones. I use them primarily to run my guitar and bass set up through. The sound is incredible, lows, mids and highs it is a perfect alternative to an otherwise poor quality amp that I own.