As described in the title of the adapter in the interior appears to have weaknesses in routable material or the intervals in general. Because unfortunately he accepts the plug on not one hundred percent, so I can, depending on the rotation of the headphone connector to hear slight crackling and / or have a total failure of the ear canals. Since I rarely come off to the adapter, I find it only rarely. But if in daily use constantly exposing the adapter mechanical stresses, could - depending on the used Steckter- quite get problems with it.
Thus, a mixed result, but the bottom line: DO NOT BUY recommendation !!!