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Your cart is empty.Fox 40 Sonik Blast CMG whistles are extremely easy to blow. Advanced science and technology makes this the most efficient, loudest whistle ever produced by Fox 40. This whistle cannot be overblown and emits sound power that exceeds 120 decibels. This clear loud blast carries above the loudest crowds and noise, and over extreme long distances. The CMG stands for cushioned mouth grip. This whistle is ideal for those who need to hold the whistle in their mouth for extended periods of time. Ideal for large crowd arenas, airport runways, search and rescue, outdoor activities and any situation where a loud signalling device is needed. Includes a break away neck lanyard
Gabriel Puyó
2025-08-03 12:19:50
I bought this whistle for soccer practice and works very well. It is really loud and efficient to lead my practices.
Azucena Olvera
2025-07-29 16:44:22
Super loud whistle grabs the attention of everyone. I use it to officiate football and it is a game changer louder then the normal fox 40’s.
TucsonRich
2025-07-26 12:06:20
Easy to carry.A good friend, that does long distance (30 miles) bike rides in urban and country areas, tells me that this whistle will stop charging barking dogs quickly. Best whistle of any other whistles her group of 10 uses.That's good enough for me. I bought 2.
D. Dunn
2025-07-15 13:16:50
I bought the Fox 40 Sonik, HUTOU Referee and Storm All-Weather Whistle to test. They all are super loud and all robust. They all read the same on my db meter and all gave everyone a head ache when I tested them. Pick the form factor, price and color you want. One side note, I was unable to test any of them underwater or in super cold conditions.
adam goldstein
2025-07-11 16:54:46
I use this whistle as I cycle down a busy street in a bicycle unfriendly area. This is not the first whistle I have used, but unless Fox makes something better, this is all you need.This is a seriously loud whistle. It is super efficient, you can be cycling and almost entirely out of breath and yet, if you blow this whistle with what little wind you have left in you, it will still be more than loud enough for drivers to hear you. I have ridden in heavy wind before, and the cross breeze hitting the whistle was enough to make it produce sound (was just for a second, but demonstrates the efficiency of the unit).If used for cycling, you NEED a whistle with a rubber mouthpiece, as this one does. This way you can ride and hold it in your teeth in congested areas. Holding a bare plastic or metal whistle in your teeth is slippery and uncomfortable.The breakaway lanyard is the essential. If you lean forward over your handlebars you'll be surprised at how easily the whistle can snag in your shifter or brake cables.Five out of five stars, all day long.
Customer
2025-06-24 18:49:22
I used it for Lifeguard, it is water proof and no balls so you can use this for any water activities.
Clearing Mines
2025-06-22 19:19:40
The sonic whistle is extremely loud. I have purchased several for others as gift. I use while bike riding and at work when needed. I’m extremely satisfied with this product. You will never need another whistle after this one. Very reasonable priced
Weld_God
2025-06-04 12:28:05
Works great. Blow too hard and you’ll blow your own ears off
Nice order again soon
2025-05-08 10:41:59
I would like to see if there's a transparent model and want to buy again, very nice
Francois Hanin
2025-04-19 16:26:25
Toujours satisfait de cette marque et de ce produit
Remy Martin
2025-04-16 10:39:36
took long but safely arrived
Customer
2025-03-07 16:47:29
Just top quality whistle. Sharp sound. Loud. All you need.
Le encantó a mi hijo, muy bien producto
2025-01-30 09:59:13
Muy buena calidad y excelente sonido y potencia.Ideal para usar en canchas abiertas o estadios amplios.
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