What is this Notification Bar Icon?

[chadsoc]

I started seeing this icon when I was at a concert (my pocket was messing with my phone), and cannot figure out what it is. Please help me identify it.

 

[fjitb]

on my old OG EVO it told me that the "hard of hearing" (or some similar wording) setting was turned on

 

[DisplacedMic]

WHAT?

 

[chadsoc]

on my old OG EVO it told me that the "hard of hearing" (or some similar wording) setting was turned on

Thanks!