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From the heart of the Industrial Revolution to today, ACME Whistles has been an emblem of trust, craftsmanship, and innovation. With over a century and a half of experience, we’re not just making whistles; we’re crafting legacies.
Trusted by Professionals
Where are your whistles made?
All our whistles are made in our factory in Birmingham, United Kingdom and have been made here since 1870, over 150 years!
How did we get our start?
It started with a young man called Joseph Hudson who trained as a toolmaker for 7 years and learned the skills that made him a superb craftsman in metal. Some of the first whistles to come off the production line were the The Metropolitan police whistle and the Boatswain Whistle.
Why do we love what we do?
From dog training to sports and safety. THE ACME whistle range continues to touch many lives.
Whistles for everyone

Is Discontinued By Manufacturer : No
Product Dimensions : 0.39 x 0.39 x 0.39 inches; 0.16 ounces
Item model number : 211.5_ALPHA_BLK
Date First Available : July 7, 2019
Manufacturer : J Hudson & Co (Whistles) Ltd
ASIN : B00X6012PS
Best Sellers Rank: #13,725 in Pet Supplies (See Top 100 in Pet Supplies) #7 in Dog Whistles
Customer Reviews: 4.4 4.4 out of 5 stars (619) 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 Labrador, Retriever, Collie, Greyhound and larger breeds. Offers a longer range than the 210.5, approximately 450-500 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: 5400Hz. The Acme 211.5 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.
13 reviews for ACME Alpha 211.5 Professional Dog Training Whistle with Enhanced Ergonomic Grip. BPA-Free Plastic. 110 dBA. Long Range. Standardized Frequency. Weatherproof. Made in The UK (Black)
Add a review
$15.30

lubers –
Alpha 11.5
Pup responds well to whistle. Great traing tool.
JMSJR –
Not ultrasonic
Good, for some reason I thought it was ultrasonic. It’s not ultrasonic but it’s a good whistle
Nikki –
It works!
We have neighbors with multiple dogs that bark incessantly! We have spoken with them and the police so many times. We’ve been nice. We’ve been mean. It doesn’t matter. This whistle reaches all the way to their house (10 acres away) and it stops the barking every.single.time!
Anne Herrington –
Easy to use
My dog responds very nicely to this whistle. It is not a silent whistle. It is one I can hear.
Erkki Maripuu –
Great whistle, could be louder for long distance work
This is a really nice whistle with good feel. The rubber coating makes it comfortable to use. I gave 4/5 stars just because it could be louder. Don’t get me wrong, it’s still loud enough but could be a little louder.
Amazon Customer –
Quality is worth the money
I tried some cheaper no-name whistles before trying this. There’s no comparison. This is a high quality whistle and worth the extra cost.There’s a bit of a learning curve to get the tone right, but my collie responds to this when he’s outside and I’m inside with the windows and doors closed as long as he’s within 30 feet or so. He can hear it when I’m standing in the open doorway across our 3 acres.
GB –
Stick with the older version
Save your money. There is nothing “improved” about this whistle. This one does not project nearly as well as the older plain plastic version. It looks cooler, but performance suffers noticeably with new design.
Amazon Customer –
Suits my needs.
We live in a remote area, and our dog is free-range. We keep a Fi gps collar on him, which notifies us if he has roamed outside our approximately 5 acre “safe zone”. He has a great recall, but sometimes it’s difficult for him to hear us calling if he is too far out in the woods. This whistle seems to be just what he needed to be able to hear us from a further distance. I bought two of them, and hung them on lanyards beside the doors, so they are easy to find.
Fabrizio –
Ottimo prodotto
Cliente Amazon –
Não sei se é bom ou não. Talvez eu não saiba usar. Eu apito e… nada acontece.
Folly11 –
I don’t recommend this kind of test but I lost my dog after a deer today. He normally has a great recall and has been trained to the whistle but I guess a deer in rutting season is enough to overwhelm anyone’s training. I could see on his GPS (also a good investment) that he was 3 fields and some woodland away by the time the chase ended (he is a small dog with delusions of grandeur so I guess they had quite easily outrun him) so I thought he might finally be capable of hearing me so I blew his whistle and immediately the blip started moving towards me. I kept whistling and sure enough he popped up. I was impressed with the whistle’s performance, less so with my idiot dog’s who has had all off lead privilege revoked until at least the end of rutting season. But it was a useful test of both the limits of his training and the whistle’s carrying ability, which is great.
Laurent S. –
Très bien surtout quand on ne sait pas siffler !
Esther Zeschky –
Wie gewohnt gute Qualität und schnell geliefert.