First, click the Apple menu in the upper-left corner of the screen and select “System Preferences.”

In System Preferences, click “Sound.”

In the “Sound” preferences window, click the “Output” button.

In Output preferences, you will see a list of connected and recognized audio output devices. Click the entry for the device that you’d like to use, and system sound will be routed to that device.

Also, if you have enabled “Show volume in the menu bar” in Sound preferences, you can also quickly switch between audio output devices by clicking on the speaker icon in your menu bar.

As you switch audio output devices, you might notice that some of the devices do not support controlling output volume via macOS (via the software sliders or volume buttons on the keyboard). In that case, you will need to adjust the volume of that device using a control element on the device itself—such as a knob, slider, or buttons.