The Original.This is is the one that changed the game!
- For Umpires and coaches at every level who want every call to be heard and depend on its reliability.
- Flawless, consistent and penetrating sound keeps the umpire in control of the game.
- Be heard above the crowds and players. standard choice for personal safety and rescue professionals worldwide.
- Chambers are designed to self-clear when submerged in water.
- No moving parts to freeze, jam or deteriorate.