ACME Thunderer Whistle #560

ACME Thunderer Dog Whistle #560

This is a professional dog whistle. The Acme Thunderer #560 is a louder and more durable whistle than the Acme #660.
Typically used in a more rural or country area and is not affected by bad weather environments such as strong winds. The whistle is loud to both the owner and the dog for well training exercises and no miscommunications.