Fox 40 Sonik Blast CMG Referee Whistle with Fingergrip

W501FMG Fox 40 Sonik Blast CMG Referee Whistle with Fingergrip

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Superior performance combined with superior comfort! The premium Sonik Blast CMG Pealess Referee Whistle from Fox 40 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. The CMG is perfect to reliably hold the whistle in mouth or fingers 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


Robert W.

Greenwood, MO

October 30, 2022
Love it. Makes it much less likely to have an inadvertent whistle.

Schleufer K.

Salem, OR

October 14, 2022
Works great.

Chris G.

Dalton, NE

September 18, 2022
Perfect for Football Umpires. Fits perfectly and sound is sharp and clear.

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