The X1 headset has been used regularly for a few years and not in the best of shape. I don't have the fuzzy thing on the mic, the mic's pivot point itself is loose but i put a rubberband around it to tighten it up, and i lost the adapter for the xbox. As I said, not in the best of shape.
The PSU however, is practically brand new. I bought a new case right after i bought it and the case had cable management stuff so I don't need the psu. I took it out of the box once, but it was never plugged in