Fox 40's higher toned pealess whistle. The Sonic is great for officiating tournaments with multiple tracks. With a higher tone than the Classic Fox 40, your calls won't be mistaken with those on the other track. Used by referees and coaches at all levels who need every call to be heard and depend on its reliability. Be heard above the crowds and players. Flawless, consistent and penetrating sound keeps the referee in control of the game. Ensure every call will be heard!
Design: 3-chamber pealess
Sound Power: 115 dB
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