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


Rosalyn P.

Fredericksburg, VA

August 17, 2021
Good referee whistle. Loud and sharp. I do think the shape makes it hard to hold without clamping down and making my jaw tired.

Patrick C.

Las Vegas, NV

March 1, 2020
I use this for soccer and basketball. It never fails and occasionally annoys fans & cheerleaders, so that's an added bonus.

Manuel Alejandro R.

Guadalajara, JALISCO

September 2, 2019
You will never get disappointed from Fox 40, a great whistle.

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