HyperWhistle The Original Worlds Loudest Whistle up to 142db Loud, Very Long Range, for Referee, Coaches, Instructors, Sports, Teachers, Life Guard, Protection, Self Defense, Survival, Emergency uses

Amazon.com Price: £11.95 (as of 21/05/2019 12:00 PST- Details) & FREE Shipping.

LOUD! – Up to 142dB for 2+ mile 8x range of a common sports whistle
included hearing protectors and easy clip neck lanyard
Used for Boating, Sporting Events, Life Safety, Camping, Hiking

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Description

Worlds’s Loudest Whistle

SPL As much as 142dB 8x louder than a not unusual whistle

2 mile usable vary

Anti-microbial composite, all-weather development

Distinctive radial tri-frequency design

Naturally Buoyant

Works in all weather environments, together with underwater

Patented Design US8925478
LOUD! – As much as 142dB for two+ mile 8x vary of a not unusual sports whistle
included hearing protectors and simple clip neck lanyard
Used for Boating, Wearing Events, Life Safety, Camping, Mountain climbing
Works in all weather environments, together with underwater
143db SPL TEST VIDEO… https://www.youtube.com/watch?v=3arN5HtB09k

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