When there's an imminent danger (mugging, beating, rape...) a good scream can seriously disturb the attacker. However not everyone can pull a 130 decibel scream like the Ila Dusk can - that's the idea behind this gadget at least. In reality, I suspect that many people would not have the time to reach it, might freeze when facing the danger or may be other people in the street just won't care. (drop a comment if you have successfully repelled an attacker). For the little story, Ila is the Hindu Godess of speech/voice. Check the Guardian.co.uk video. (19 UKP at Marks & Spencer)
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