Sometimes, you may not have access to a device that can connect to the new K3 via USB Audio Class 2. In these situations, you can go to USB Audio Class 1 mode with just the flick of a switch.
* Using the 2.0 mode requires downloading and installing the FiiO USB driver
* After switching USB modes, you need to either turn the new K3 off and on, or unplug and plug in the USB cable.