I have it hooked wrong in the picture. Returned them only to get the wrong size again ?? I would like the company to add a travel bag and make it either usb charge or run off batteries in addition to the plug in so that I can you know. Very durable and easy to install. Control handles really well and battery life last pretty long. 4 Ghz is really nice along with a nicely tucked away 2. Excellent sound quality, my son wants a pair too! But that said very comfortable, added TONS of bass back to my headphones because the noise isolation was much better than the stock headphone cushions and offered even more volume on same volume settings because of far less noise bleed. For direction changes, these are still better than the original Ultra Boost shoes, but not great for any cross-training or trail running type movements or surfaces. Donc mystère.