For over 20 years, Fox 40 Whistles have been heard in every major sporting event including the Olympics, World Cup, Super Bowl, and NBA Championships... just to name a few! Fox 40 Pealess Whistles are the whistle of choice for professional and amateur officials and coaches worldwide! Today, Fox 40 Whistles are used by police, firefighters, rescue professionals, crossing guards, lifeguards, boaters and more. Fox 40 pealess whistles can be heard over a mile away, are waterproof and unbreakable. This faultless performance has made them the preferred choice for safety in over 140 countries!