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Similarly high-pitched devices are sold to dissuade congregating teenagers. They are not illegal, in the UK anyway.
by buckminster 7y ago
Similarly high-pitched devices are sold to dissuade congregating teenagers. They are not illegal, in the UK anyway.
- justinjlynn 7y agoThey should be illegal when used for that purpose. They're extremely loud and damage hearing directly. It's like blasting an air horn in someone's ear.