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
- 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
- Works in all weather environments, including underwater
- 143db SPL TEST VIDEO… https://www.youtube.com/watch?v=3arN5HtB09k
Worlds’s Loudest Whistle
SPL up to 142dB 8x louder than a common whistle
2 mile usable range
Anti-microbial composite, all-weather construction
Unique radial tri-frequency design
Naturally Buoyant
Works in all weather environments, including underwater
Patented Design US8925478
