Fox 40Sonik Blast CMG Fingergrip Pealess Whistle - Black

Perfect sound and size!!

If you are looking for a whistle that you can differentiate from others, look no further. I am a field hockey umpire, and many tournaments have fields that are directly next to each other. The whistle tonality for this particular whistle is different from most, making it easier for players to recognize my whistle and differentiate from other whistle tones near by. It is also very loud and clear, and has a comfortable finger grip. It’s well worth the purchase for any sport!

Bought this for my son when he is doing his hockey refereeing. Works well for him. have to give it a good hard blow and its nice and loud.

Fox 40 Sonic Blast is probably the best whistle for the money. It is easy to modulate and extremely loud. It has a high quality sound to it, not too high and not too low, that gets the attention of everyone on the field. I own quite a few whistles that I use on regular basis, below is my recommendation based on my my personal observation.1. Fox 40 Sonic Blast – extremely loud with good sound quality. Great for outdoor, too loud for indoor.2. Fox 40 Pearl – Not very loud but has a deeper sound than other whistles that I have used, other than Caul. Great for Indoor, will do on a small field outdoor.3. Acme Tornado – Quite loud and with good sound but the fingergrip mechanism is crap. Good overall for both indoor and outdoor.4. Molten Delux – As loud as Acme Tornado, but is sounds a bit cheap, plus it does not have a fingergrip mechanism that I prefer. Good for both indoor and outdoor.5. Fox 40 Classic – As loud as Acme Tornado, but with a much higher pitch. (Too many referees use this whistle on the pitch, indoor and outdoor, but it is quite a good whistle.)6. Fox 40 Caul – As loud as the Pear but with a deeper tone. (It sounds loud to me, but from personal experience it is not heard easily on the field. I wrote a review of this whistle on Amazon.) Not recommended.

This is a loud whistle, easily heard during the roller derby bouts I referee, even over the crowd and the yelling of the women whom are competing. The markdown in stairs is due to two reasons. 1) The rubber on the finger-grip has come loose, and started to slide around, split at the ends, and fray at the edges. And the white rubber on the mouth piece is starting to come apart, due to my biting down. It hasn't changed its usefulness (yet?), but I do have to watch and make sure I don't push off one of the rubber finger-grip covers. Even with those issues, it doesn't hurt my hand or fingers, and is very easy to hold and use.

This is the kind of whistle that the refs use. Our coach loves it! He can really get their attention.

I have the Fox 40 Classic Fingergip whistle but decided to try something new this season. When I first blew into this whistle I was shocked at how loud it was. However, it has been excellent and is easy for every player on the field to hear. I highly recommend this whistle if you are looking for something nice and loud that the players will immediately recognize. The kids on my field do not mistake the nearby whistles for mine because this has a very distinct sound.

this whistle is very loud and quite effective at getting one's attention...I use it for recess duty at school and it works great