It literally says it in the description. Without a doubt, if music is important to you and youve never experienced true hi-fi, these headphones will be a life changing experience for you. Im loving this watch now. My biggest disappointment was when I came back to order a size down & found that 6T (what we ordered) was the smallest available. To be honest I can almost skip the usual boring warm-ups altogether as this body shaper makes my muscles warm in just a couple of minutes! Great to have for guest bathroom This one is easy to attach to the bike, holds the phone securely. I previously bought (and returned) the m50x and 598cs, but I will be keeping the 599. Dont trust the reviews. These are thick-soled, heavier duty slippers.