HyperWhistle The Original Worlds Loudest Whistle

https://amzn.to/2UJ1KhN

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

• SUPER LOUD! - Up to 142dB for 2+ mile 8x range of a common sports whistle
• includes re-usable hearing protectors and easy clip neck lanyard
• Used for Boating, Sporting Events, Life Safety, Camping, Hiking, Police
• PRODUCT REVIEW VIDEO... https://youtu.be/RohJfM-VFS0?t=121
• 143db TEST VIDEO... https://www.youtube.com/watch?v=3arN5HtB09k