115 DB The Fox 40® Classic® CMG® Fingergrip is cushioned to enhance the original Fox 40 Classic Fingergrip whistle. Ideal for those who need to hold whistle in mouth for extended periods of time. Fingergrip model has adjustable fingergrip that fits securely and comfortably over group of fingers. No moving parts to freeze, jam or deteriorate. Flawless, consistent and reliable. The harder you blow, the louder the sound. Will be heard above ambient noise and loud crowds. Sound will be heard up to a mile away.