The Storm All-Weather Safety Whistle is the loudest whistle on the market. Its patented design allows the Storm whistle to be heard up to fifty feet underwater, due to its unique sounding chamber forcing out all water when the whistle is blown.

Features and Specs:

• The Storm whistle is twice as loud as any other mouth-blown whistle in the world
• It's perfect for divers, lifeguards, and for recreation!
• Made in the USA
• Creates a clear high frequency sound with a power rating over 75% greater than other safety whistles