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Sound Power: 110 Decibels
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Designed to be small and flat with no pressure points
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Pealess whistle with no moving parts to freeze, jam or deteriorate
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Easy to blow and cannot be overblown
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The harder you blow, the louder the sound
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Chambers are designed to self-clear when submerged in water
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Will be heard above ambient noise, loud crowds, the roar of engines, breaking waves and thundering gale-force winds