ACME original 'silent' dog training whistle no. 535. Adjustable frequency. Instruction leaflet included. Made in the UK. Good sound quality. Weather-proof. Solid brass with nickel plated finish PETIMP STORE Replace cartridges every 4 weeks

Replace cartridges every 4 weeks for optimal performance

Activate live tracking immediately to recover your dog

no longer trapped from view or reach

Very easy to clean and maintain

Great for Travel - It's a great option for people with smaller pets or older pets that can't take long walks

ACME original 'silent' dog training whistle no. 535. Adjustable frequency. Instruction leaflet included. Made in the UK. Good sound quality. Weather-proof. Solid brass with nickel plated finish PETIMP STORE Replace cartridges every 4 weeksFeatures: Adjustable Frequency 5400 12800Hz. Protective end cap. Designed with special air directors to tightly control the frequency produced and generates over a mile of sound with minimal effort. Quiet human audible sound to confirm the whistle is working. 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