Fox 40 Sonik CMG Whistle & Lanyard

When you need a whistle that can stop boat traffic from a kilometre away, this is the one to reach for.

The Fox 40 Sonik Blast CMG is one of the loudest pealess whistles Fox 40 makes, built for situations where being heard is non-negotiable. On the water, at a busy beach, or in a search and rescue scenario, that sharp, penetrating tone carries above breaking waves, engine noise, and gale-force wind. The sound travels up to a mile, which is a meaningful spec when you're signalling for help from a kayak or canoe.

The CMG stands for Cushioned Mouth Grip, a thermoplastic mouthpiece that protects your teeth and gives you a secure hold even with wet hands or a wet face. It's a small detail that matters a lot if you're a coach, lifeguard, or paddling guide who has a whistle in their mouth for hours at a stretch. Like all Fox 40 pealess whistles, there's nothing inside to freeze, jam, or wear out, and the chambers flush themselves clear after a submersion.

Blow harder and it gets louder. It won't overload or choke out no matter the conditions. This is a serious safety whistle for serious time on the water.

• Pealess design, no moving parts to freeze or jam
• Cushioned Mouth Grip (CMG) thermoplastic mouthpiece
• Audible up to one mile away
• Self-clearing chambers when submerged
• Cannot be overblown
• Volume increases with blow intensity
• Cuts through wind, waves, engine noise, and crowd noise
• Includes lanyard
• Available in multiple colours