This is a test that will produce a tone that is generally only heard by people under the age of 25. It has been used as a deterrent device to keep teenagers from loitering in malls and shops, and sounds similar to a buzzing mosquito. Typically the longer you listen to it, the more annoying it gets.
CLICK HERE to see how old your ears are. Got kids? Have them take the test! It's fun for the whole family! My dog even took the test! See how she did here.
12 years ago
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