By using Audio Switch you can double tap the back button to switch your Speaker output and may only work when the Steam Overlay is opened. If you use a wireless headset and want to be able to switch from your headset playing the sound to your PC Speakers you can also download AudioSwitch program and create a Hotkey that will PreviousPlayBackDevice by pressing RAlt + F24. This program costs $20 but comes with a free trial so if you don't like this setup after a few days it won't cost you a dime.
First you will need a program called Pinnacle Gamer Profiler. Id you ever want to play Call Of Duty – Black Ops III with a controller on PC and be able to record videos, take screenshots and more. Xbox Gamepad Support is a mod for Call of Duty: Black Ops III, created by LegoManIAm94.