Some Questions I Still Need Answering! (Predator G3-710 Desktop & Predator MNT XB240H Monitor)

Onion2018

(Predator G3-710 Desktop & Predator MNT XB240H Monitor, Keyboard And Mouse Included)

So I have a couple of questions including:
-Is there any other way to change the brightness without using the buttons found in the bottom left corner of the monitor (key board short cuts, ect).
-Is it possible to turn off the light in which the mouse creates, similar to the corresponding keyboard.
-Does anyone have a solution for headsets being classified as speakers, and consequently the built-in microphone doesn't work.

Thanks for all who respond! 

ven98

-There is no way to change the brightness from windows.
- About turning off the LEDs of the mouse, check if there is an option in predator sense.
- Does your headset come with single or 2 3.5mm jacks?