How to Mute Mic with Keyboard Shortcut
If you've got a mic that doesn't have a built in mute, such as the Razer Kraken Pro, this utility is very useful.
Links:
MicMute - http://sourceforge.net/projects/micmu...
------ALTERNATIVE-----
Lightweight AHK deafen script: https://drive.google.com/open?id=1l5Y...
You will need AHK to run this: https://www.autohotkey.com/