BRASS ACME SILENT DOG WHISTLE 535 ACME

No "silent" dog whistle is truly silent. If it were, nothing would be able to hear it! The word “silent” is in quotation marks because it can be heard — but only just — by humans. However, for your dog, it’s very loud, and its sound can travel up to 1.5 kilometers.

Adjustable across a wide range of frequencies using a screw-piston mechanism, it allows you to fine-tune it specifically for your own dog. It is the most versatile "silent" whistle and can be used with all breeds.

It is designed with special air directors for precise control of the frequency produced, and it can transmit sound over a distance of more than one kilometer with minimal effort.

Made from solid brass, it lasts for decades. This is the ultimate "silent" dog training whistle.

Features:

• It offers frequency adjustment up to over 7400 hertz