About any technical figures, I can not make any comments. The contacts are gold-plated, but whether that is now so great, I do not know.
What bothered me initially was the double cable, which is very very stiff and hard. This has given me personally now not so much.
In addition, the plug is very difficult to clean into the socket. This is of course good if you need something that does not jump immediately from the socket.
But I personally prefer the "normal" version, because if you accidentally times will hang on the cable, I'd rather that the cable from the socket "misses" and not the socket of the device: D
For the cable, however, was also reasonably priced.
If you would, for example, to perform as a fixed extension when the PC connections back to front, or the like, the cable is certainly appropriate toll. As an extension of the smartphone but it is not so good, because it's just too thick and chunky.
Technically I can not say anything as saying. Come out sound, ists OK for me and do it;)
