ACME 535 Silent Dog Whistle | Adjustable Frequency | Made in the UK Vendors H to L Adjustable frequency screw — fine-tune

Adjustable frequency screw — fine-tune to your dog's response

The ‘Launcher Bird Dummy’ by Sporting Saint

UK manufactured and fully compliant with all selling regulations and approvals

Every dog needs its own space to relax and feel safe

ACME 535 Silent Dog Whistle | Adjustable Frequency | Made in the UK Vendors H to L Adjustable frequency screw — fine-tuneThe ACME 535 is the original silent dog whistle precision engineered in nickel plated brass in Birmingham, England, by ACME Whistles, the company that has been making the world's finest whistles since 1884. Inaudible to the human ear, the 535 emits an ultrasonic frequency that dogs hear clearly at distance. The adjustable frequency screw allows you to fine tune the pitch to your dog's response, and the protective end cap keeps the mouthpiece clean