Inspired by [this design](https://www.thingiverse.com/thing:4573348), this is my take on adding a mic to the Audio Technica ATH-M50x. The boom is made out of 2.5 mm² cable which is stiff enough to hold position but easy to reposition. Two 10×2 mm magnets covered in black electrical tape hold everything in place, making the mic easy to remove when not needed. During casual listening only a small clip is visible on the headphone, and when you need the mic it just snaps right on.
Built around a cheap Natec microphone, though .f3d source files are included so you can tweak tolerances or adapt it to a different mic.
