Fox 40 Classic CMG

First we built the worlds best whistle. Then we made it more comfortable.

The Fox 40® Classic® CMG® delivers the same legendary 115 dB performance as the original Classic — now with a Cushioned Mouth Grip (CMG) that protects your teeth and locks the whistle securely in place. Built for officials, coaches, and professionals who keep their whistle in their mouth for extended periods. Same reliable pealess design. Noticeably more comfortable.

Who Its For

🏈 Referees & Officials — Long games mean long wear. The CMG grip keeps the whistle comfortable and secure through every quarter, period, and set.

🏊 Swim & Aquatic Coaches — Works wet. The soft thermoplastic grip stays put even during high-intensity pool sessions.

🏫 Coaches & PE Teachers — Hold it in your mouth hands-free while running drills. The CMG grip means less fatigue, more control.

🏒 Hockey Officials — The preferred choice for on-ice officials who need a whistle they can grip hard through cold, fast, physical play.

Features

• 115 dB — same legendary power as the original Classic
• Cushioned Mouth Grip (CMG) — soft thermoplastic protects teeth and improves hold
• Ideal for extended wear — stays comfortable during long shifts and games
• 3-chamber pealess design — no moving parts to freeze, jam, or fail
• Self-clearing chambers when submerged in water
• Cannot be overblown — the harder you blow, the louder it gets
• Available in 11 colors

Classic vs. Classic CMG — Which is right for you?

If you keep your whistle in your mouth for long periods — get the CMG. If you clip it to a lanyard and blow on demand, the Classic is all you need.

Specs