Thanks ! Material covers too much by my toes and it moves around when I walk. and when they get dirty. (Please do not expect much for music because thats not it is designed for)1. You will need to go through the different pieces to find the ones that fit perfectly in your ears. I HAVE NOT tried it since it seems like it is not available on MacOS. The sound is very good I am happy for it. I can wear them all day! NOTE: I took a risk and bought an open box listed as "Very Good", I am also happy I did as I recieved a practically new rack at a considerable disccount. Unfortunately I had to return them as they came up small.