The adapter does more than just give you access to a 3.5 mm audio jack and a Type C port at the same time.
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This USB Type-C Auxiliary adapter allows you connect devices that use a 3.5mm audio plug to your USB-C devices. This adapter also allows you to not only listen to audio; but to use your earphones for phone calls and volume control. USB Type-C and USB-C are trademarks of USB Implementers Forum.
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