50Hz noise constant problem of a mass defect into the microphone of the adaptaeur circuit Y.
Perixx AX-4200, Gaming & Audio Headset Earphone Earbud - Body Aluminum - Travel Case - Compatible with iPhone, Android and mobile devices (Personal Computers) 1
Perixx AX-4200, Gaming & Audio Headset Earphone Earbud - Body Aluminum - Travel Case - Compatible with iPhone, Android and mobile devices (Personal Computers)
Excellent audio listening, but mass defect in the cicuit microphone in the adapter Y. Default resulting in permanent 50Hz hum in conversations (eg Skype). Unusable in the state. Returns to Amazon for a refund and Sennheiser PC300 has redeemed instead.