Fox 40 Sonik Blast Referee Whistle

W501CMG Fox 40 Sonik Blast Referee Whistle

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Superior performance combined with superior comfort! The premium Sonik Blast CMG referee whistle from Fox 40 is a pealess whistle. It provides additional comfort for holding the whistle in the mouth. Distinct louder pitched whistle provides a more powerful sound without a lot of effort which is easily heard over the crowds. Ideal for large outdoor arenas with large crowds and ambient noise. CMG is perfect to reliably hold the whistle in the mouth in wet conditions.


  • Design: 2-chamber/4 resonators; pealess
  • Sound Power: exceeds 120 dB

Product Video

Hear Fox 40 Sonik Blast CMG Referee Whistle in Action

Fox 40 blows the Sonik Blast CMG Referee whistle


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Official Reviews


Gregory S.

El Paso, TX

May 20, 2023
These whistles work for both basketball and football. They are loud, durable, and last!

Aiden E.

Arvada, CO

May 13, 2023
Love Fox40s. Definitely get the attention of players, coaches, parents, and other officials.

Thomas D.

McAlester, OK

December 28, 2021
Best whistle I have used. It is loud and can be heard in noisy gym.

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