

📣 Own the sound that commands attention — be heard, be unstoppable!
The Fox 40 Sonik Blast CMG whistle is a professional-grade, pealess safety whistle engineered for maximum volume and clarity. Featuring a patented 2-chamber, 4-resonator system, it produces an ear-piercing 120+ dB blast that carries over long distances without distortion. Its jam-proof design ensures reliable performance in all conditions, while the cushioned mouth grip and bold red/black color make it both comfortable and easy to locate. Ideal for coaches, referees, safety personnel, and outdoor enthusiasts who demand a powerful, dependable signaling tool.
| ASIN | B00FOJCL1S |
| Best Sellers Rank | #16,682 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #72 in Coach & Referee Whistles |
| Brand Name | Fox 40 |
| Color | Red/Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,217) |
| Date First Available | August 21, 2014 |
| Included Components | Sonik Blast CMG Whistle |
| Item Dimensions LxWxH | 3.2 x 4.6 x 1.1 inches |
| Item Package Dimensions L x W x H | 6.58 x 3.23 x 1.1 inches |
| Item Weight | 0.06 Pounds |
| Manufacturer | Fox 40 |
| Material | Plastic |
| Model Name | Fox 40 Sonik Blast CMG Whistle |
| Model Year | 2018 |
| Number of Items | 1 |
| Package Weight | 0.03 Kilograms |
| Part Number | 9203-3708 |
| Size | 4.6 x 3.2 x 1.1" |
| Style | Sonik Blast CMG Whistle |
| Suggested Users | unisex-adult |
C**W
Crazy Loud and Extremely Effective
This Sonik Blast whistle is exactly as described. It’s extremely easy to blow. I’m not sure if it’s actually 120dB, but I can say without hesitation that it is crazy loud. The sound is super clear, very strong, and will make your ears ring if you’re not careful. It has a slightly cushioned mouth grip, which is comfortable, and the design produces a powerful blast that carries over long distances with no distortion. I bought this whistle to scare off coyotes that kept coming into my backyard and trying to get my dog and it absolutely works. After using it, they haven’t been back for a few days, and I’m hoping they stay gone for good. This is a great safety whistle, and I plan on buying several more one for each dog leash, each keychain, and another to keep nearby. Very effective, well made, and worth every penny.
E**S
Powerful Whistle That Cuts Through Noise
Powerful Whistle That Cuts Through Noise The FOX 40 Sonik Blast whistle is exactly what I needed for situations where volume and clarity matter. It’s extremely loud—so much so that it can easily cut through background noise on a sports field, at outdoor events, or even in emergency scenarios. The high-pitched tone carries far, and unlike traditional whistles, there’s no pea inside to jam or freeze up, which makes it reliable in all conditions. I like the bright yellow-and-black color combination because it’s easy to spot if dropped in grass or packed gear. The build feels sturdy, and the design is simple but effective—no moving parts to wear out. I’ve used it during coaching sessions and a few outdoor hikes, and every time it delivered consistent performance without requiring much effort to blow. One thing to keep in mind: it is extremely loud. That’s the point, of course, but indoors or in close quarters it can be overwhelming, so I recommend using it in open spaces where the volume can do its job without being too jarring. Bottom line: A top-tier whistle that’s rugged, bright, and unbelievably loud—perfect for coaches, referees, safety personnel, or anyone who needs a reliable signal in noisy environments.
A**E
LOUD and shrill
Twice as loud. Definitely more shrill. Requires more breath to maintain noise due to double vent. Silicone lip grip is helpful. Its hard to tell by watching the video, BUT, hubby said the Fox whistle is "easily twice as loud" as the standard whistle. It is easier to hold a sustained trill with a standard whistle as the pea and chamber in a standard regulate the airflow. However, for LOUD, this one wins. For short repetitive toots, the Fox is super awesome. In the video, I cut my blow short because its LOUD and I didn't want to scare my neighbors. (That and im old, chubby, and out of shape.) The connection point loops are substantial and look like they will hold up to some abuse. The silicone mouth grip thingie encases the whistle, which appears to be made with three connected pieces. Thr lanyard is a tube with both a snap connector and a slide toggle which will allow for wearing around the neck or wrist. Around the neck, the snap closure will allow for break away safety if pulled.
E**N
Loud
Very loud, will ring your ears. Perfect little whistle.
W**D
LOUD!!!
This whistle is seriously loud! Don't blow it within 5 ft of anybody, they might have an accident!
G**S
Love this whistle
The dogs actually listen to this whistle!!!
A**R
Extremely loud!
Extremely loud little whistle! Glad I bought it.
A**A
LOUD
Holy MOLY this is loud! I haven't had to use it to scare off a dog yet and my daughter hasn't had to use it to scare off a person yet, but I have a feeling it'll work well.
C**L
As a new PE teacher my daughter needed a whistle, she wanted a red one. Read lots of reviews both on Amazon & elsewhere 'Fox 40 Sonic Blast' always came at the top, found it in red on Amazon so brought it as a gift. She absolutely loves it, so loud that all the kids stop even at a busy lunch time in the playground. It's so good the other long standing PE teachers have dumped off their cheap whistles & brought one.
斉**斉
防犯目的で購入。 軽く吹いただけでもかなり大きい音が出るので震災や強盗の場面でも役に立つと思います。
F**O
Super
L**A
Great whistle!
E**A
O apito foi presente e meu neto gostou.
Trustpilot
2 months ago
1 month ago