NRS Fox 40 Whistle

Standard whistles use a small ball, or pea, inside the chamber to create sound. In cold or wet environments, that pea can freeze or get stuck, rendering the whistle silent. The Fox 40's pea-less design eliminates moving parts entirely, ensuring it works reliably in freezing temperatures and after being submerged.

Yes. The whistle is designed to self-clear, meaning the chambers are engineered to drain water instantly. It will function immediately after being submerged, making it ideal for kayaking, rafting, or other water sports.

Yes, 115 decibels is extremely loud—roughly equivalent to a chainsaw or a loud concert. This high output is specifically engineered to cut through ambient noise like wind, surf, and whitewater, ensuring you can be heard over long distances.

The whistle comes with a built-in split ring, similar to a keychain. You can easily loop this through the lash tab or zipper pull on most standard life jackets, backpacks, or PFDs.

Yes, the high-impact ABS plastic is designed to withstand drops, impacts, and general wear and tear. It is lightweight but rugged enough to handle the demands of backcountry rescue and outdoor adventures.