 The volume on the headphones, just every year that goes by, you just slide it up a little bit more, slide it up a little bit more. There's some wear and tear that goes into that, but I wanted to talk about what's wear and tear, what's normal for aging when it comes down to hearing loss. What is the difference between, yep, getting old is what it is, and this is a problem, I should see Dr. Fire. Can you kind of run us through that a little bit?