In Windows 11/10, the default audio output device is the device that Windows uses to play sound – this can be speakers, headphones, Bluetooth headset, or other audio devices connected or built ...

here is how you can change the output device. Open Windows 10 Settings > System > Sound. Under Output, select your headphone from the dropdown. Adjust the volume using the Master Volume Slider.

Professor Hawking used an input device controlled by his cheek movements to choose the words he wanted to use. A special output device turned those words into electronic speech that people could hear.