So, to that end, I cant say whether or not this would necessarily work for its advertised use case. The glasses dingles when people walk by. Amazing quality - so comfortable and cosy, but they need to be to justify the enormous cost! 5 miles a day in my job in cold cellars and they are great. When I walk in them my instep gets shoved inward. Ed ovviamente non adatte a degli MP3. I bought a set of these headphones (in blue) in late January 2016 a a local Big Box home electronics store. This headset works exactly as advertised. Auch in die nächste Etage, ohne den Sender Smartphone oder Fernseher bei sich zu tragen. (I guess the homeless shelter will get some nice clogs!