A
NY Times article I read the other day talks about how teenagers are using super high-pitched ring tones to use their cell phones to text message during classes. Most people lose their ability to hear such high frequencies with age, making this the perfect cheat-the-teacher tactic du jour.
Here's a clip of the sound courtesy of npr:
squeal me!
I sure as hell can hear it, and it is atrocious.
Can you?