Fox 40 Sharx whistle
Reviewed by
Keith Trott
+194
June 10, 2026
Extremely loud pea-less whistle with a piercing shrill pitch.
Pros
- Lightweight
- Weather resistant pea-less design
- Newer models have co-moulded rubber for grip
- Large selection of easy to see colours
Cons
- The metal ring for the lanyard attachment is too big and a bit clunky.
This really is a brilliant whistle and is incredibly loud. The pitch is also very shrill and I can imagine would cut through most, if not all, background noises like waves, wind, and engine noises etc....it really is piercing and sounds totally different to a traditional "Perry" whistle.
Available in several bright colour options for visibility and also black, which I believe is intended for football referees. Suitable for use as a sports whistle, but this model is designed for and predominantly aimed at the outdoor pursuits market.
The only thing I didn't like was the metal ring for the lanyard attachment which seems a bit oversized and clunky. I removed mine and threaded paracord directly which improved it.
Background
I've never used it in an emergency but have tested it.
Source: bought it new
Price Paid: £15
