Mic works for conversation, not sure about recording music, which I dont think it is designed for. I wore these for a short time and ended up with blister on the top of each foot from strap closest to ankle. On another note, it shipped and arrived absolutely pristine, though Im pretty sure the delivery guy hates me for ordering something so big and unwieldy. Upon further review, this unit draws more than the advertised 1000 watts. Its for fancy dress hence the wig. The material is like spandex so I couldve went down one size. My son has the same shoes in an 8 and the 10s I ordered are the same size but more narrow. 2) Ears will start heating up after around 2 hour of usage and will cause discomfort. The slippers are very comfortable with good support. Cute and comfortable but my "regular" 8.