> I've had bad luck getting those controls working with TRRS extension cables. Ugh. That. A tip: always ensure that the extension cable is attached to the auxi

> I've had bad luck getting those controls working with TRRS extension cables. Ugh. That. A tip: always ensure that the extension cable is attached to the auxiliary device (eg headset) first. One of those flaky impedance tricks is to try and detect the microphone through it's impedance when the TRRS jack senses a plug. If you plug the extension cable in first, the device detects the plug in the jack, can't detect the microphone (or whatever other magical device it's looking for - like volume controls), and disables anything it doesn't detect until the plug is removed. ( At least that's how my Macbook works. )