Does anyone know what this is in my sound drop menu?

[Mat Ho]

So I'm on an essential ph-1 and I converted over to a Nova launcher and while I've been changing things here and there I've noticed now when I press the volume buttons while the phone is in lock or unlocked, I see a little person with their arms spread (like an umpire calling "safe" and there is a slider and I can change the frequency of this like if I changed the slider up on my media my music would get louder. However I do not have a clue what this does and how to get rid of it because I don't actually want it on my sound quick drop menu. Please help me out!

 

[Rukbat]

That has nothing to do with Nova (I just checked mine - the standard display is the ringer volume, unless you have media playing. Check to see if you have any volume control apps installed. Or maybe a media player of some kind is adding that to the display.