a Hearing Test - VERY COOL

[OzDust-08]

The 1st time I didn't know what to listen for and fast forwarded.
Then I heard it at 50hz

 

[Tessa]

I could hear it as soon as it started, and had to turn it off at 80!
But I'm sound sensitive and get migraines a lot, with sound being a trigger.
Like Abz, even the electrical appliances wigs me out!!