For exterior: The headphones look good and metalworking looks classy. Processing looks as far from good. Since concept works very well with the fabric cable and is for me an innovation that will gladly used with other headphones could take measures to prohibit the permanent untangle cables!
If you put the headset on, you can hear almost nothing of his environment - the noise-canceling works so relatively well!
For sound: The headphones are designed for heavy bass music and should only be used for this. I was hoping that nevertheless mids and highs come out clearly, but I think the sound of "normal" music simply too dull and bassy! Therefore, I will return the headphones also.
Conclusion: If you like "with a lot of bass" like and good looking headphones for not too much money wants, which should hit here! Otherwise, do not put your fingers on it.
PS: The sound impression is always subjective and can vary from person to person, from device to device. I've tested with an iPod Nano.