The highs were clean with just the tiniest bit of hiss, but again nothing too noticeable. These are supposed to be the "classic" shoes, but they are far from it. It is of metal construction and much sturdier looking than flimsy, almost wooden chopstick-like shoe racks Ive used before. When the newer style earbuds arrived, I opened the box. The shoes are very comfortable aside from the heel slipping, and will have to return both pairs that I ordered. 4 out of 5 stars due to plastic casing where the core locks are located, but 6 out of 5 stars for price! I havent worked out in it yet but Im sure itll work great. Plus red is my favourite colour. It is a single connection headphone! These shoes were so cute I wanted to keep them!