FOX 40

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fox 40

Fox 40 have developed an innovative and reliable product that has revolutionized the requirements of the whistle and changed the sports industry forever. Over the past 25 years, Fox 40 has continued to innovate and revolutionize whistle technology.

The Fox 40 Pealess Whistle is much like a harmonically-tuned instrument, because it produces three slightly different frequencies simultaneously. The different frequencies are superimposed on one another out of phase, and thus alternately reinforce and cancel out each other. The result is a loud, piercing vibrato that has no moving parts to get stuck.