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A comment on Bose Hearphones. Parent comment

Re:Bose Hearphones by kalleboo on Friday December 09, 2016 @11:39PM (#13144053)
There are shops in Tokyo (and other countries) that emit a high pitched noise to keep teenagers from loitering
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Re:Bose Hearphones by NovaS1X on Saturday December 10, 2016 @04:26AM (#13144859)
I'm in Osaka right now and you'll find those around the temples at night. They kill my ears but I'm the only one in my group that can hear them.

I think they're meant to scare cats away, but they work well for teenagers and people like myself (26)

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Re:Bose Hearphones by Semaphor on Saturday December 10, 2016 @01:46AM (#13144425)
While I don't think we have those, there are anti-marten devices for cars that are supposedly outside of the range of human hearing. They really hurt.
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