Detachable 1.2 m - 3.0 m (3.9' - 9.8') coiled cable
Detachable 3.0 m (9.8') straight cable and detachable 1.2 m (3.9') straight cable
if money’s no object, you really should grab the Audio-Technica ATH-M50xBT instead. Not only do they offer the best of both worlds when it comes to mobile and desktop listening, but they offer the same sound the M50 line has earned its fame with. For only $199, you could grab a pair of cans that offer everything the Audio-Technica ATH-M50x does, but with Bluetooth 5 wireless connectivity, and excellent battery life.
-Sound Guys(Apr 2019)
a modestly improved version of the already spectacular model they're based on, and among the best-sounding pairs you'll find for less than $200.