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

May 19, 2024   Verified Purchase
Sharp, clear, and loud blast. Works great at crowded and noisy events. Perhaps the loudest and clearest whistle I have used. I highly recommend it if you often have difficulty having your whistle heard while officiating.
December 30, 2023   Verified Purchase
This is currently my go-to whistle for my college and high school games. The sound of the whistle will be heard in the loudest of arenas. I would highly recommend you add this to your reffing bag.
September 27, 2023   Verified Purchase
I normally love Fox whistles. This one, not so much. VERY shrill, and sound feels like it's coming out the side, not the front.

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