Suggestions for good portable headphones?

Hi,

I'm looking for good portable headphones, my preference is to have rotating cup headphones, so far I find the Audio-Technica ATH-M50X a good bet, but I wonder if there're other options that I might not know about.

Other finds so far:
- AIAIAI TMA-2, but how easy it is to dismount and mount?!

*should have rotating cups

What’s your price range? That determines a lot.

I use a pair of AKG K240, they don't rotate 360° or 180°.

I once had a pair of NADY QH660. Very good quality headphones for a budget of $20 and for that price you get two, yes (2) headphones. They lasted me a good ten years and maybe could've lasted longer if my bull terrier puppy didn't chewed them to death. They folded and rotated 360°. A premium headphone of theirs are the DJH-2000 headphones, for $25 they really good quality for on the budget.

I also have the Tascam TH300X but one ear is giving up the ghost and was pretty new. I guess from the many times I wrapped up the wires and pushing them in a bag to fit to go mobile. But the NADY's took a beaten so... Other than that good sound and quality.

Behringer is dope, don't sleep on their cheap headphones, just like NADY, you get studio quality headphones for beer money.

I don't like Sony headphones, the wires tend to wear fast. I remember going through 5 headphones by Sony in a year.