How to play sound through contoller?

The ps4 controller, wii controller, Steam controller, and a few others have a speaker built in. How does one get sound to play through the controller?

I have found no documentation on this and found nothing from an online search.

I’m looking for some information about this, too.

When editing a sound class in the editor you there is a property called Output Target. This is “Speaker” by default, but if you change it to “Controller” or “Controller Fallback to Speaker” then it will work. This works for PS4 controllers, not sure for the Wii or Steam controllers though.