BLACK WHISTLE THUNDERER 660 ACME

The strong whistle requires little blowing effort, 117dBA.
It is recommended for children, the elderly, or anyone with a respiratory problem.
Favored by customers in colder settings where metal might stick to the skin; also chosen by officials in sports, teaching, animal training, police authorities, military units, and music specialists.
Ideal for lifeguards.
It is the whistle that has been used more than any other in Championship and World Cup finals. Reliable and powerful with sales of over 30,000,000 pieces.