Does Headphone (1) Pro support USB-C audio and 3.5mm Aux-In wired audio connections? September 29, 2026 06:24 Updated Supported. Both USB-C audio and 3.5mm Aux-In wired audio connection are supported. Related articles What functions are available when using the USB-C audio cable or 3.5mm Aux-In audio cable? Does Headphone (1) Pro support dual connection? What is Transparency Mode? What audio specifications are supported by Headphone (1) Pro in wired mode? How do I switch between noise cancellation modes?