ACME Alpha 211.5 Dog Training Whistle, Baltic Blue, 5400 Hz Long Range

ACME Alpha 211.5 is a professional dog training whistle designed to carry clear training cues over distance, with a standardized 5400 Hz frequency and an approximately 450–500-yard (411–457 m) range.

• Patented sound chambers use air efficiently to produce a brighter sound for close and distance commands.
• BPA-free plastic made to food-grade standards, with an ergonomic grip for a comfortable mouth feel and handling in varied conditions.
• Weatherproof, pealess design with a 110 dBA sound level.
• Made and rigorously tested in the UK by specialists with more than 150 years of experience.
• Developed over four years with World Champion dog trainers.
• Baltic Blue color lets different handlers use distinct whistle colors while keeping the same standardized call.

This whistle is made for dog owners and handlers who need a consistent audible cue during training, whether the dog is nearby or working farther away. Its standardized frequency means the dog can recognize the call across different people using the whistle, including family members and dog walkers. The Alpha 211.5 is preferred for Labradors, Retrievers, Collies, Greyhounds and larger breeds.

How does the Alpha 211.5 carry a training cue?

Its patented sound chambers make efficient use of air to create a brighter sound, supporting commands at close range and over distance. The whistle’s range is longer than the ACME 210.5, making this model a choice for handlers who need an extended audible cue.

• Standardized frequency: 5400 Hz.
• Approximate range: 450–500 yards (411–457 m).
• Sound level: 110 dBA.

What is it made from, and how does it feel to use?

The whistle is made from BPA-free plastic to food-grade standards and has an all-over ergonomic grip. The grip is designed to feel soft in the mouth and support handling in different conditions; its weatherproof construction suits outdoor training.

• Pealess design: no ball and no cork.
• Weight: 0.013 lb (6 g).
• Color: Baltic Blue.

What size is the whistle?

The compact whistle measures 3 inches (7.8 cm) long, 0.5 inches (1.3 cm) wide and 0.5 inches (1.3 cm) high. Its small dimensions and 6 g weight make it straightforward to carry during training sessions.

• Length: 3 inches (7.8 cm).
• Width: 0.5 inches (1.3 cm).
• Height: 0.5 inches (1.3 cm).

ACME developed the whistle in collaboration with World Champion dog trainers over four years, then made and rigorously tested it in the UK. It suits handlers of larger breeds who want a lightweight, weatherproof training whistle with a consistent call across multiple users. Its 5400 Hz frequency and extended range are the defining fit for that use.