Sorry for the off-topic post, but I just clicked that link too and couldn't even hear that mosquito.
I tried this one and my hearing rolls off at 15666hz:
Never thought that would be considered "excellent"
Dang, I was sure I had hearing as good as a bat
I used my Q701 and should try another one.
Oh yeah, i'm 33. No concerts for me and I don't listen too loud.