Fox 40 Classic

The 115 dB Fox 40® Classic™ is for referees and coaches at all levels who want every call to be heard. Flawless, consistent and reliable. Sound will be heard up to a mile away. Fingergrip model has adjustable fingergrip that fits securely and comfortably over group of fingers.

Fox 40 pealess whistles have no moving parts, making them resistant to freezing, jamming or deteriorating. This design allows the chambers of the whistle to self-clear when submerged in water. Fox 40 whistles are easy to blow; the harder you blow, the louder the sound. They are flawless, consistent and reliable, producing a 90 – 125 decibel sound that will be heard above ambient noises over great distances.

[FanFanFan]

I have the red one so nice referee whistle.

[rupeshsingh]

From where I can get fox 40 original whistle in India