The loudest whistle on the market

• Can be heard clearly above noisy howling wind and viutually any competing sound - can even be heard as far away as 1/2 mile
• Crowd noise or the roar of a loud engine will not overpower the soundUnique patented design allows the whistle to be heard under water, up to 50'
• Sounding chamber forces all water to be purged when the whistle is blown
• Creates a clear, high frequency sound, with a power rating over 75% greater than other referee and safety whistles
• Breakaway lanyard adds convenience and safety
• Adopted by the US military, police, adn security forces worldwie
• Ideal for divers, lifeguards, and for recreation
• Made in the USA