AMAZON 535 Silent Dog Whistle by Acme

The Acme Nickel Plated Brass Silent Dog Whistle is a highly versatile and adjustable tool for training your dog. With its adjustable screw piston mechanism, this whistle enables precise control over a wide range of frequencies, allowing you to tailor it to your dog’s unique hearing range.

Powerful and versatile

This whistle is adjustable between 5200Hz to 12880Hz and can be heard for over a mile, making it a brilliant tool for a variety of training exercises across many different locations. It is designed with special air directors to tightly control the frequency produced and generates over a mile of sound with minimal effort. Much of its original elegant shape from the period of Art Deco has been retained having been conceived by Clifford Hudson, son of founder, Joseph.

Key Features:

• Whistle had Adjustable Frequency
• Protective end cap
• Quiet human audible sound to confirm whistle is working
• However the whistle is engineered to produce a relatively quiet whistle sound audible in the human range the sole purpose of this is to reassure the user that a sound in the required range is being produced
• The reason for this is that if the whistle is incorrectly set up when selecting the frequency then it will not function properly without this facility the user will not realise the whistle is not working