Neumann NDH 20

it is solid contraction, I travel allot with them inside my backpack for a year on cold winter and hot summers without a carrying case and they look/work impeccable .

sound perfectly good with a nice picture of the sound.
If you're use to open back headphone, you might feel these a little boxy but the presentation of the sound is there and you can really mix effortlessly with them. They are not overhype, but Its main strong is on the mid.

These can are beautiful to use when tracking vocals. Gives a nice premium feel to the singer offering them a nice sound of the music with a broad focus on the mids (were the vocals frequency are).

You might need a decent headphone amp but They are easy to drive with my babyface pro FS.

MacBook Pro m1headphone amp struggle a bit, but I was able to make a basic mixing (balancing level) with ease.