Description
The Acme No. 660 Thunderer is likely the most versatile and easily the most recognizable whistle of all time. Essentially the calssic 60.5 Thunderer in BPA free plastic, this all-around whistle has the tone and gravitas to cut through sound in almost any situation. Its ease of use and loud sound are key reasons its consistently chosen by officials in sports, teaching, animal training, police authorities, military units, and music specialists. Ideal for sports, gym classes, teaching, coaching, dog recall, and dog walkers.