Players will have no troubling hearing your calls through whatever noise the match brings with the 60 1/2 Acme Thunderer Whistle. The Thunderer has been the whistle of choice for the world's top referees and officials for over 130 years. Get an instant response no matter what the weather conditions or crowd noise.
Waterproof speed pea works perfectly in rainy conditions
Silver finish for easy visibility
Easy blow rate with a high tone and very high volume for ease of use even when out of breath
Tapered mouthpiece accommodates users of all sizes