17. QX11 inline remote and microphone usage instructions
Does the QX11 support inline remote?
Yes, the QX11's 3.5mm headphone jack supports CTIA protocol inline remote, supports volume adjustment and play/pause control via the inline remote. The game mode supports the inline microphone.
The pin definition is shown below:

About the Microphone
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The microphone function is only available in Game Mode.
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When using the 4.4mm headphone jack, you can also switch to Local mode to use the built-in microphone.
QX11 Microphone Settings
In the QX11 menu, you can switch between the external (headset) microphone and the built-in microphone.
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Auto: When a CTIA-compliant inline-control earphone is plugged in, the device automatically selects the inline microphone. When the earphone is unplugged or a non-inline-control earphone is plugged in, it automatically switches back to the built-in microphone.
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Inline: The inline microphone is selected. When the inline-control earphone is unplugged, the device will not automatically switch back to the built-in microphone.
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Local: The built-in microphone is selected. Even when a CTIA inline-control earphone is plugged in, the device will continue to use the built-in microphone instead of the inline one.