ACME Silent Dog Training Whistle No

535 For more than a century, ACME has stood for reliable, purpose-built dog training tools

The No

535 is a UK-made whistle crafted from solid brass with a nickel-plated finish, designed to deliver a distinct signal while ing a quiet, human-audible confirmation

Its weather-proof build and refined sound ensure it remains a companion in varied outdoor conditions, from damp mornings to open field training

This is a heritage tool that blends classic engineering with modern needs, helping handlers communicate with clarity without compromising their dog’s focus

Adjustable frequency for versatile training Adjustable Frequency 5400–12800 Hz lets you tailor signals to your dog’s hearing and temperament Special air directors tightly control the frequency, promoting consistent sound output Protective end cap helps prevent damage during outdoor sessions Quiet human-audible cue confirms the device is working without startling the dog Long-range potential supports cues over greater distances with minimal effort Durability, design, and what's included Solid brass with a nickel-plated finish for durability and a smart, professional look Weather-proof design built to withstand outdoor training in varied conditions Includes an instruction leaflet with easy-to-follow steps to get started ACME whistle made in the UK by specialists with over 150 years of experience In -world use, the No

535 supports recalls during busy walks, field training, or structured sessions where precise, repeatable cues matter

The adjustable frequency allows handlers to match signals to different dogs or training contexts, while the long-range projection may help you deliver cues without shouting

The subtle confirmation tone lets you verify operation without pulling focus away from your dog

The robust construction and weather-proof finish give you confidence when training outdoors

While every dog responds differently, this combination of features a practical option for consistent practice and clearer signaling over time

FAQ Q: What makes ACME No

535 whistle adjustable

A: It features an adjustable frequency range of 5400–12800 Hz to tailor signals for different dogs

Q: Is the whistle durable for outdoor training

A: Yes, its solid brass with nickel finish and weather-proof design are built for field use