Figure out your date’s age using mosquito noises
The device dub’d the mosquito, emits a noise which depending on the settings can only be heard by a certain age group 20,30,40 etc. So if you think your date might be lying about her age this product is for you!
The concept is simple. As people age, their hearing tends to diminish. One of the first signs of age-related hearing loss is the inability to hear very high pitched noises. The Age Prediction Machine has four noise settings that can allegedly determine whether the person you’ve been set up with on a blind date is a teenager, a twenty-something, a 30 year old, or someone over the age of 40
The mosquito will only set you back a mere 880 Yen ( about $10 US).




There’s something very similar that started in the UK a while ago, it’s a cellphone ring tone using high frequency that only teenagers can hear ( so their teachers or parents cannot hear them ).
http://www.nytimes.com/2006/06/12/technology/12ring.html
Interesting to see how the japanese puts this concept to a different use.
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