• The 3-chamber pealess design has no moving parts to freeze, jam or deteriorate.
• Easy to blow and cannot be overblown. The harder you blow, the louder the sound.
• Chambers are designed to self-clear when submerged in water.
• Sound will be heard up to a mile away.
• A whistle is vital for signalling above the sound of surf and whitewater.
• Remember, in most on-the-water situations a sounding device like a whistle is required by the Coast Guard.
• We recommend against attaching the whistle to the zipper pull on your life jacket. That can result in accidental unzipping.

Specs