Authentic. Original.
Standard choice for personal safety and rescue professionals worldwide. The harder you blow, the louder the sound! 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. There are no moving parts to freeze, jam or deteriorate.
Design: 3-chamber pealess wistle with the penetrating sound!
Sound Power: 115 dB