The iPhone headsetfrom Apple can work with Elgato Thunderbolt™ 2 Dockas basic headphones.

The iPhone headsethas a few special features that will not work with Elgato Thunderbolt™ 2 Dock.

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Headphone Jack of Elgato Thunderbolt™ 2 Dock

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You can use the iPhone headsetas headphones, if you connect it to the headphone jack of Elgato Thunderbolt™ 2 Dock.

You cannot use the transport buttons (move forward, move back, pause) or volume buttons.

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Microphone Jack of Elgato Thunderbolt™ 2 Dock

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You cannot use the iPhone headsetas a microphone.

If you connect it to the microphone jack of Elgato Thunderbolt™ 2 Dockthen it won't work at all, as headphones or a microphone.