ACME Alpha 210.5 Professional Dog Training Whistle with Enhanced Ergonomic Grip. BPA-Free Plastic. 110 dBA. Standardized Frequency for Smaller Dogs. Weatherproof. Made in The UK (Black)
$16.00







Price: $16.00
(as of Oct 13, 2025 22:53:26 UTC – Details)
Product description


THE ACME ALPHA 210.5 Dog Training Whistle

About the brand
Acme has been a trusted name in whistle manufacturing for over 150 years, renowned for commitment to quality, precision, and innovation. With a legacy of excellence, Acme whistles are crafted with meticulous attention to detail, ensuring optimal performance in a variety of applications. From sports coaching to emergency signalling, Acme’s whistles deliver powerful sound projection, reliability, and durability. Professionals and enthusiasts alike rely on Acme for their signalling needs.
Established since 1870 Over 150 years of experience Provide a variety of whistles to suit your needs, from Sports and Dog Whistles to Emergency Signalling and Military Whistles
Introducing the ACME ALPHA 210.5 Dog Training Whistle: Precision in Training
Enhanced ergonomic grip. BPA-free plastic. 110 dBA. Standardized frequency for smaller dogs. Weatherproof. Made in the UK
The ACME ALPHA 210.5 Dog Whistle is the ultimate tool for achieving exceptional results in dog training. Crafted with precision and trusted by professionals, this whistle is purpose-built to help you forge an unbreakable bond with your furry companion. Its distinct frequency range is ideal for sound projection, ensuring that you can capture your dog’s attention, even in noisy or distracting environments.
Enhanced performance and control of your commands. Featuring a compact and lightweight form factor, making it incredibly easy to carry and convenient for on-the-go use. Precisely crafted frequency range, precision-engineered to deliver a distinctive and attention-commanding sound. Delivers commanding sound projection to ensure effective communication across diverse environments. Designed with an ergonomic shape and comfortable grip for secure and comfortable handling. The Comfort Grip adds stability in the hand in all weather conditions. Crafted from premium materials with precision engineering for long-lasting and dependable performance. Easier to blow due to a reduction in air loss, allowing for quieter sounding more responsive commands. Made in the UK using the most technologically advanced materials and production methods to create a World leading product.
Key Features of the 210.5 Dog Whistle

Frequency Range
The Acme 210.5 Dog Whistle is specifically designed with a precise sound frequency to effectively communicate with dogs. The sound frequency of the 210.5 whistle falls within the ultrasonic range, typically ranging from 5400 to 12400 Hertz (Hz).
The choice of an ultrasonic frequency for the Acme 210.5 Dog Whistle is based on the hearing capabilities of dogs. Dogs have a wider range of hearing compared to humans, and they can detect sounds at higher frequencies. While humans typically hear sounds in the range of 20 Hz to 20,000 Hz, dogs can hear sounds up to around 65,000 Hz or higher.

Sound Projection
The focused sound projection of the 210.5 whistle is beneficial during dog training sessions or when giving commands outdoors. Whether you’re training in a park, on a field, or in a noisy environment, the whistle’s powerful sound projection helps cut through background noise and distractions, ensuring that your signals are clearly heard by your dog.
This allows for better communication, improved obedience, and enhanced training results.

Weather Proof Material
We use materials that can withstand exposure to moisture, rain, and extreme temperatures. Common materials include high-quality BPA-free plastics, stainless steel, or brass.
ACME aims to maintain the whistle’s sound quality and volume. We strive to balance the need for weather resistance while ensuring the whistle produces a clear, loud sound that can be heard over distance.

Ergonomic Design
The shape of the whistle is carefully made to fit naturally in the hand, allowing for a secure and comfortable hold. The curves of the whistle align with the natural shape of the hand, reducing strain and fatigue during extended use.

The New Features of the ACME ALPHA Range
DEVELOPED OVER FOUR YEARS: In collaboration with World Champion trainers to create an unrivalled whistle. Patented sound chambers offer a more efficient use of air. That means brighter sound giving you better command and a more responsive dog, close- to and over distance.
NEW FEATURES:
Enhanced performance and control of your commands. The Comfort Grip add stability in the hand in all weather conditions. Easier to blow due to a reduction in air loss, allowing for quieter sounding more responsive commands.
Available in a wide variety of colors. Choose a different color whistle for your partner, family members, dog walker, or even to match an outfit for a special occasion knowing that your dog will respond to the whistle, whoever is blowing it!

Genuine ACME quality
ACME whistles are made in the UK using the most technologically advanced materials and production methods to create a World leading product.

Proudly made in the UK
ACME Whistles proudly upholds a rich tradition of whistle manufacturing deeply rooted in the United Kingdom. Our company’s inception dates back to 1870 when we were established in the vibrant city of Birmingham, England. Since that time, we’ve remained steadfast in our commitment to operating from our UK base.
Our dedication to preserving this heritage is evident in our choice to manufacture exclusively in the UK. By doing so, we can ensure that our products adhere to the most stringent quality standards and craftsmanship of our local workforce. This enduring commitment to our roots is a testament to our pledge to deliver excellence in every whistle we create.
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Customer Reviews
4.4 out of 5 stars 538
4.5 out of 5 stars 2
4.1 out of 5 stars 1,050
3.9 out of 5 stars 3,444
4.2 out of 5 stars 510
Price
$16.00$16.00
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$13.98$13.98 $8.50$8.50
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Composition
BPA-free plastic to food-grade standards BPA-free plastic to food-grade standards BPA-free plastic to food-grade standards BPA-free plastic to food-grade standards Solid Brass
Preferred Use
Labrador, Retriever, Collie, Greyhound and larger dog breeds Referees, Coaches, Survival situations, Lifeguards, Emergency, Safety Works well with Pointers, Setters, Retrievers, Labradors and most Terriers. Excellent for older or dogs with hearing loss, hard to train dogs and heavy cover situations. Shepherd Dog, Sheep dog trials Navy, Military, Airforce, Film Memorabilia
Key features
Standardized 5400Hz Frequency, 450-500 yard range, Patented sound chambers, Pealess, Ergonomic Design 119dBA, Small and compact, Easy to blow, Pealess, Shatterproof, Bite resistant Small, Pealess, Holds pitch no matter how hard you blow. Create a crescendo of sound in tremendous variety. Versatile recognizable Navy sounds, also featured in Star Trek. Seen in Harry Potter. A beautiful gift.
RRP
$16.00 $9.50 $16.00 from $8.50 from $33.00
Available Colours
Black, Baltic Blue, Black on Day Glow Orange, Carmine Red, Day Glow Pink, Forest Green, Magenta, Purple, Turquoise, Violet, Black on Day Glow Green, Black on Day Glow Pink, Baby Blue, Lime Green, Baby Blue on Yellow Black, Red, Day Glow Yellow, White, Day Glow Orange, Day Glow Green, Blue Day Glow Orange, Day Glow Green, Purple, Hot Pink, Black Black, Blue, Red, Green, Standard Orange, Baby Blue, Chocolate, Day Glow Orange, Lime Green, Purple, White, Yellow and Nickle Silver Metal Polished Brass, Antique Brass, Matt Black, Nickel Plated, Gold Plated, Silver Plated, Rose Gold Plated
Genuine ACME designed, made and rigorously tested in the UK by specialists in the field
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Product Dimensions ā : ā 3.07 x 0.51 x 0.51 inches; 0.21 ounces
Item model number ā : ā 210.5_ALPHA_BLK
Date First Available ā : ā June 1, 2023
Manufacturer ā : ā J Hudson & Co (Whistles) Ltd
ASIN ā : ā B0BYFB38GT
Best Sellers Rank: #28,733 in Pet Supplies (See Top 100 in Pet Supplies) #18 in Dog Whistles
Customer Reviews: 4.3 4.3 out of 5 stars 178 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Preferred by Spaniels, Cockapoos, Dachshunds, and smaller breeds. Range of approximately 100 yards.
Developed over four years in collaboration with World Champion dog trainers to create an unrivalled whistle. Patented sound chambers offer a more efficient use of air. That means brighter sound giving you better command and a more responsive dog, close- to and over distance.
Standardized Frequency: 5700Hz. The Acme 210.5 Alpha maintains a standardized frequency, ensuring your dog recognizes your call. Choose a different color whistle for your partner, family members, dog walker, or even to match an outfit for a special occasion, knowing that your dog will respond to the whistle, whoever is blowing it!
Made from BPA-free plastic to food-grade standards, with new and improved all over ergonomic grip offers softness in the mouth and perfect handling in all conditions.
Genuine ACME whistle made and rigorously tested in the UK by specialists with over 150 years of experience.
Weight: 0.013lbs / 6g. Length: 3 inches / 7.8cm. Width: 0.5 inches / 1.3cm. Height: 0.5 inches / 1.3cm. Pealess/ball free/no cork whistle.
Customers say
Customers find the training whistle effective, with one mentioning it successfully trains Spaniels. The sound quality receives mixed feedback – while some say it can be louder, others find it overpriced. The whistle effectively grabs dogs’ attention.
13 reviews for ACME Alpha 210.5 Professional Dog Training Whistle with Enhanced Ergonomic Grip. BPA-Free Plastic. 110 dBA. Standardized Frequency for Smaller Dogs. Weatherproof. Made in The UK (Black)
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$16.00


Kindle Customer –
A whistle humans can hear but not harsh sounding.
Not really a dog whistle if you want a silent whistle only a dog can hear. It has a high but not piercing sound so it’s not hard on human ears. My dog responds to it well. He is a rescue and I think he was exposed to a whistle before I got him so he is easy to work with. I like it and easy to keep on my key chain, colorful.
Juan Carlos –
Great Whistle
I”ve been using the less expensive Acme 210.5 and decided to try the Alpha.. It is much easier to blow and can be a bit louder so I can work my Spaniels at greater distance. It really gets their attention when they are locked in chasing swimming ducks, (their worst of many bad habits), and on dry land their recall seems more energetic and focused, which potentially can be a true life saver. Because this whistle has a sharper clearer sound, they seem to pay better attention in all commands and we are both happier when they respond successfully. I recommend this for anyone who is looking to successfully train Spaniels.
Inspectorman –
Easy to blow amd fits comfortably in mouth
Works as needed. A lanyard would have been nice.
Debbie M –
Great tool for training
Got this whistle to train my dog for an “emergency ” come.There have been a few very scary times when we would be on a walk and she would see “her” stray cat friend. She gets REALLY excited to see her friend and if im not expecting it, she has gotten away from me a few times. When this happened she chases the cat wherever it goes and was not responding to the emergency voice cues. When she hears the whistle, she stops in her tracks and comes right back. It doesn’t sound like much to my ear but it’s been very effective with her.I watched YOUTUBE videos on how to use and train with the whistle..There was also a video that compared the sounds of the different models. I was able.to easily pick out the model that she responded best to.All in all very happy with this purchase. Great tool!!!.
libby linton –
Barking
Did not keep my yorkie from barking, unfortunately.
Sj Construction –
Does the job intended
I think it’s overpriced for what it is but what are the alternatives? A coaches whistle? That might alarm the neighbors!
Limey –
Very high pitch. Grabs my dog’s attention.
I have a dog that when you get its attention is quite obedient but sometimes gets zoned in on rabbits under the wildlife. This high pitch whistle grabs her attention and she then listens to my commands.
Elizabeth Cummings –
This actually works.
Good price.
drmcnaught@shaw.ca –
Am using it and like how compact it is and the sound of it.
menet –
LƩger et pratiqueFonctionne
Kunde 2020 –
Prima, funktioniert einwandfrei. Hatten vorher eine andere, die hatte einfach ein zu kurzes Mundstück.Hier kann man auch mit Pfeife im Mund noch rufen.
Amazon Customer –
Good colour & durable. Have been using for a few months now & the pitch is perfect. My dog responds every time even when thereās a lot of commotion going on. Easy to use . Would def recommend
Francesca –
Ottimo prodotto. Lo consiglio.