As the worldwide leader in whistle technology, set out to develop a new whistle for the ever-changing demands in stadium and safety arenas worldwide. We looked at our bestselling whistles; the Classic and the Sonik Blast. The dependable piercing ultra high frequencies of the Classic’s upper chambers penetrate crowd and background noise in any situation. The lower chamber of the Sonik Blast generates a powerful and penetrating lower frequency to carry over longer distances. Fuzing these two designs, along with the patented CMG comfort mouthgrip, finalized the whistle with a perfect sound and feel, creating optimal sound power. Pack contains 1 Fuziun CMG Whistle with Breakaway Lanyard 118DB Sound will be heard up to a mile away