HyperWhistle World’s loudest whistle
HyperWhistle World’s loudest whistle

HyperWhistle World’s loudest whistle

Make Sure you are Heard with the HyperWhistle World’s loudest whistle!   The HyperWhistle is the world’s loudest whistle and ensures that the blower is heard with an ear piercing 142dB of sound for over two miles, which is 8x the range of conventional sports whistles.  Ideal for Referees, Coaches, ...

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