Just found out about these not long ago (despite being around for decades, apparently), and I got a set for my birthday: Very cool headphones.... On-ear, open-back, wired headphones with a frequency range of 20hz-20,000hz. Extremely mid-forward profile, with a prominent spike in the 2k range, but with a ton of detail and clarity. They're extremely utilitarian, with simple injection-molded plastic enclosures and a simple vinyl-wrapped metal headband, a non-removable Y-shaped cable, and simple foam ear cushions. That said, I really like the look of these - very retro. Tons of noise leak and zero sound isolation, in addition to the richly detailed but almost exhausting mid-range, mean these are for critical listening only in quiet environments. Hard rock and metal punch hard, in a way that's initially kind of unpleasant, but after a few minutes of getting accustomed to it, details just jump out that would ordinarily get buried in a more traditionally V-shaped profile. They have a nice wide soundstage that makes instruments feel separated in the mix. Best of all - these suckers are only $80 USD and are made in USA (Brooklyn, NY). Doing a little bit of research, apparently there are some folks who love these things and others who despise them. I had not heard of them previously, but they do zero marketing other than word-of-mouth, apparently, and just stumbled upon them when looking for recommendations for solid critical listening headphones on a budget. I have to say - these things kick out some seriously impressive sound for the price. I'd definitely recommend them for listening to virtually any kind of music. I'll be interested to see how these will do in a mixing situation, but given the tonal profile, I imagine these will be spectacularly capable of bringing details in vocal and guitar performance forward for mixing.