SKU: 50095283620

HKM-8911421 Ultrasonic Adjustable Dog Training Whistle for Bark Control and Recall

Sale price$47.69 Regular price$52.99
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Description

HKM-8911421 Ultrasonic Adjustable Dog Training Whistle for Bark Control and RecallIntroducing the HKM 8911421 Ultrasonic Adjustable Dog Training Whistle, a cutting edge tool designed for effective bark control and reliable recall for your canine companion. This metallic dog flute boasts a sleek design and is crafted from high quality brass electroplated nickel, ensuring durability without compromising on style. Weighing just 12 grams, its easy to carry and handle during training sessions. What sets this ultrasonic whistle apart

Introducing the HKM-8911421 Ultrasonic Adjustable Dog Training Whistle, a cutting-edge tool designed for effective bark control and reliable recall for your canine companion. This metallic dog flute boasts a sleek design and is crafted from high-quality brass electroplated nickel, ensuring durability without compromising on style. Weighing just 12 grams, it’s easy to carry and handle during training sessions.

What sets this ultrasonic whistle apart from a regular one is its unique ability to emit sound in the ultrasound range. This means it can travel long distances without interference from external noises, making it ideal for training your dog even when there are distractions. While humans may not perceive the sound, dogs can hear these ultrasonic waves distinctly, enabling them to receive clear and precise commands.

One important aspect to consider is that dogs require training to respond to the whistle effectively. Initially, they might not instinctively know that the sound signifies returning to their owner, but with patience and practice, they will learn to associate the sound with the desired behavior.

The HKM-8911421 also features an adjustable volume. By simply rotating the adjustment tube and changing the position of the nut, you can customize the pitch to suit your dog’s preferences. This flexibility allows you to find the perfect tone that resonates best with your pet, making training sessions more effective and enjoyable for both of you.

Whether you are looking to enhance your dog’s recall abilities or encourage better bark control, the HKM-8911421 Ultrasonic Adjustable Dog Training Whistle is an essential tool for every dog owner committed to building a strong training foundation.

Product name

Ultrasonic Adjustable Dog Flute

Product color Metallic

Applicable object Whole dog breed

Product material

Brass electroplated nickel

Product weight 12G

What's the difference between this and a regular whistle?

The sound blown by the dog flute belongs to ultrasound, which has a long propagation distance and is not disturbed by external sounds, which is very suitable for long-distance recall of dogs.

The sound of the dog whistle is not very loud, can the dog hear it?

Ultrasound is beyond the range of the human ear, so only the tubular sound of the dog's whistle can be heard. But the dog's ear can receive ultrasonic waves, and for dogs, it can receive bright and accurate instructions.

The dog doesn't respond when it hears it. What's going on?

Dogs are not born knowing how to play the dog whistle to return to their owners, which requires training.

Can I adjust the sound volume?

The size of the space in the rotating adjustment tube can be adjusted by adjusting the position of the nut to adjust the pitch of the sound, so as to achieve the purpose of adjusting the volume. Each dog has its own pitch, choose the pitch that the dog likes to use for training half the work, twice the effect.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50095283620

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Review Dude
Los Angeles, US
★★★★★ 5
#1 for #2's
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
I like the lack of sweeteners and flavor. I just want the stuff that helps me poop. There is some citric acid in it (no idea why) which gives it a mildly acidic taste. Other than that, it does the trick.
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Reviewed in the United States on March 23, 2026
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Strathmont
Phoenix, US
★★★★★ 5
Good Stuff
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
If you need more fiber in your diet, you need this. The price is right, it works very well and keeps me regular. I use this instead of the gummies or capsules. That's because you MUST put in in fluid, and hydration is SO important when using a psyllium product as it causes water to be absorbed very quickly once it is ingested, and you don't want to dehydrate! Mixes very well in water and has little to no taste whatsoever. Stay regular, stay hydrated and stay well.
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Reviewed in the United States on April 14, 2026
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Robert
Chelsea, US
★★★★★ 4
Works well, but is now too expensive...
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
The "No added sweeteners" has been my go-to version of Metamucil, but I'm giving it 4 stars and moving on to another brand as the price is over $35 which is too much imo...
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Reviewed in the United States on October 15, 2025
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S. E. Seater
West Palm Beach, US
★★★★★ 5
I like the mildly tart taste of this unflavored, unsweetened drink made up with water.
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
I like the mildly tart taste of this unflavored, unsweetened drink made up with water. The texture doesn't bother me, with stirring right from the beginning of adding the water, there is no clumping. After 10 days there is no effect on my bowels which were regular previously anyway. My doctor wanted me to use this although I already have a high fiber diet.
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Reviewed in the United States on April 25, 2026
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AB
Fort Morgan, US
★★★★★ 1
Definitely Not Unflavored. This is Tart / Sour, Which Limits the Options to Certain Juices
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
I was expecting an unflavored fiber powder. However, expect a sour/tart taste. This means you can't add it to tea or coffee. I don't think it is appropriate to say that it is "unflavored" as I've had psyllium husk from other vendors that are truly "unflavored" (i.e. no citric acid). Dextrin (another fiber source) is also unflavored. But this Metamucil is tart (like sucking a lime) and can only be added to tart juices like orange juice or lemonade.
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Reviewed in the United States on May 19, 2026

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