I assume by headset you mean something with both headphones and a microphone. I that case, it is both an input AND output device.
A headset can function as both an input and an output device. It serves as an output device by producing sound for the user to hear, such as audio from a computer or phone. It can also function as an input device by incorporating a microphone to capture the user's voice for communication or recording purposes.
A headset
It depends - if it's just headphones, it's an output device. If the headset includes a microphone - it's both an input and output device.
output devices are
Output devices.
Yes, it should work. But a device with 7.1 output should have an option to output 5.1 and automatically convert the signal.
Speaker, headset, earbud.
output devices are monitor,speaker,printer where you get your output
Lots of companies create output devices.
braille and headset
No you cannot.
are space satellites input or output devices