Back by popular demand – The Mini Fox whistle is a more compact version of the Fox 40® Classic® with a smaller mouthpiece. Produces a high-pitched, ultra-shrill tone, fits easily into a pocket or purse. No moving parts to freeze, jam or deteriorate. Flawless, consistent and reliable. The harder you blow, the louder the sound. Easy to blow and cannot be overblown. It will be heard above ambient noise, the roar of engines, breaking waves and thundering gale-force winds. The chambers are designed to self-clear when submerged in water. Comes with neck lanyard.