Specification USB Audio Device Class 3.0, eliminates the need of phone connectors 3.5 mm diameter
The organization of the USB Implementers Forum (USB-IF) introduced specification USB Audio Device Class 3.0. The specification is designed to pass USB Audio at USB-C main solution for all devices with digital audio, including headsets, mobile devices, docking stations, gaming peripherals and gear VR headset.
Using USB–C and USB Power Delivery, manufacturers are spared the work with multiple connections as data, power supply and video signal transmitted over one port. Add USB-C support USB Audio enhances this effect. Manufacturers have the opportunity to abandon the TRS connector 3.5 mm diameter in their products, winning about 1 mm thickness.