Sound Outputs

In Windows 10, left-click on the speaker icon in the System Tray. This will display the volume slider.

Click the small up arrow located in the upper-right corner of the volume slider. (Actually, you can click anywhere at the top of the pop-up box.)

This will display all of the available audio playback devices.

Click on the device you would like to have produce the audio and VOILÀ!

Now you can switch back and forth between playback devices with ease.