The mic on this product is pretty good. It does exactly what its intended to do. I?ve been wearing them almost daily (with and without socks) and so far so good. I tested to see if the ports are interchangeable. First off let me start off by stating I have tested a LOT of headphones over the years. Who knows? I just keep ordering shoes of different sizes and hope for the best. The only thing that could improve this case is if the lid and the case itself were attacked rather than in two separate pieces. Sound was static-y, slurring, breaking up, in and out. I cant describe how weird these shoes fit! Easy to fix to my treadmill