When your dog is calm, press quickly to get their attention, then immediately reward with praise or a treat. Do this a few times a day so they build a positive link.
2. During Barking or Reactivity:
Interrupt: Press and hold the ultrasonic button.
Command: Give a calm, firm cue like “Quiet” or “Calm.”
Reward: The instant they stop, reward with praise or a treat.
3. Keep It Short: Use in bursts of no more than 10 seconds. Consistency is what creates long-term results.
4. Tip: If one ultrasonic mode feels less effective, switch to the other.
This “Interrupt → Command → Reward” loop is the key to creating real behaviour change. The device is the reset tool, but the reward and consistency are what make the change last.
40% OFF + BUNDLES
We believe in real value, so we’ve made our best offer simple, clear, and built to reward dog owners who take training seriously.
Get 40% off our standard single-unit price. That’s just $99.95 (down from $167).
Family of dog owners and need more than one?
We’ve structured our bundle options to make stocking up smarter:
• 2-Pack: Buy one, get the second 50% OFF
• 3-Pack: Buy two, get the third FREE
No expiry countdowns.
Just thoughtful pricing built around real results.
Key Features
Ultrasonic frequency to capture your dog’s attention instantly.
Calm K9 Pro™ is 100 percent shock-free and painless, delivering gentle training with real results.
Shipping and Returns
Please allow 1–2 business days for order processing before dispatch.
Estimated delivery time: 1-5 business days after shipping from Sydney warehouse.
30 Day Guarantee
We offer a 30 day risk-free money back guarantee. If you don't love it, please reach out and we'll make it right!
We want you to love what you ordered. If you’re not completely happy, you’ve got 30 days to send it back for a full refund. Just reach out to our support team and we’ll help you through it, easy and stress-free.
No to Shock Collars.
Yes to Real Behaviour Change.
Shock collars use pain to control behaviour. We don’t.
Backed by canine behavioural science.
The Calm K9 Pro™ emits a high-frequency sound (20–30 kHz) that humans can’t hear, but dogs can.
The sound is designed to interrupt unwanted behaviour like barking, aggression, or anxiety-driven reactions, giving your dog a moment to stop and refocus.
Helping your dog feel safe, supported, and calm. Because being a “good” dog should feel good.
Safe and Seriously Effective.
Whether it’s a stubborn barker, leash aggression, or full-blown chaos— the Calm K9 Pro™ gives you an immediate way to reset your dog’s behaviour.
It’s built for all cases, especially the hard ones— the dogs that don’t listen, don’t focus, but you know has a heart of gold. Instant focus and fast results.
If nothing else worked, this will.
Why Settle for Less?
Range, power, and precision matter.
The Calm K9 Pro™ was built to outperform every generic knockoff on the market.
Not just louder—wider coverage and better focus so your dog hears it every time.
Our 20–30 kHz shifting range prevents your dog from getting used to the sound, making the effects always resonate.
Customer Reviews
Overall rating: 4.9 / 5 from 1224 reviews.
We have a superintelligent and defiant toy poodle Miss Pepper as well as an adorably loving but reactive guardian Toy Cavoodle Mr Darcy. Mr Darcy has the hearing of a supersonic radar and can hear movement (translated as threat) for Kilometres so as the world goes on he can be a bit (very) yappy :( Buy using this device with the tips of verbal praise, they have both settled in very well to observing the goings on in the world with out comment. This took no longer than 3 days with a maximum of 4 zaps on day 1 reducing each day. It is now week 2 and we have engaged the power of the button only a couple of times to remind them. I am so grateful for this tool and so very proud of our little fur babies.
Very pleased with the Calm K9
I have only had too use it a Handful of times . If Ned starts chasing the Cat
I only have to show him the Device and he Behaves
The Calm K9 is better than we expected it to be
Gaye and I are Very Happy with it
Regards
Matthew and Gaye
In the small town we live in every 2nd house has a dog or two. The dogs are the alarm for the town letting everyone know someone or something is moving around. At times my little dog thinks he needs to bark continuously even when there is nothing or nobody around. I have only had to use the device once and he stops and returns to my side. Considering I have had it for a few weeks it has held charge really well. I have even leant it to my neighbour who walks every morning and afternoon without a dog to shut all the barkers up as she walks. Fantastic device and can 100 percent recommend it.
This baby has anxiety bad and using this device helped him and my 4 others to lay down and stop instantly Amazon device I’ve told my other friends about it and showed them also thru the phone to my daughters dogs who also stopped barking so amazing and happy with it finally a good reliable solution that don’t hurt them
It's great, it calms my dogs down from upstairs if they are barking at a possum in the back yard. It's not as great if they are seeing someone come through the front door. But it definitely calms it more! Been recommending to family with protective dogs
It used to drive me crazy the extended barking at the gate. Within days judicial use and reward for responsiveness it is great. He is calmer in that he no longer winds himself up. It’s great being with him in the yard. Thank goodness that at my wits end trying to stop his behaviour I have finally got something that works.
I admit I was very sceptical when heard about this, but my friend was so adamant that it worked for her dogs so I ordered one. Well what a brilliant surprise! It works fantastically on my stubborn dachshunds, they are very loud barkers, and no amount of yelling would make them stop. Every little noise outside would set them off! I had tried a bark collar on the worst offender, but it was useless. This little gadget actually works, I used the first beep, but when they ignored it I used the sound wave, boy did they stop in their tracks and be quiet. I only have to show them the beeper now and they settle down straight away. Oh and by the way, it's very sturdy and well made, I am extremely happy, so glad I took a chance 😊
I inherited 2 dogs after my partner passed away. With my 2 dogs it gets very loud when someone comes calling. It seems to work well. Haven’t needed to use much as they now listen when I tell them to stop lol 😂
This has saved me actual headaches! I’ve had the Calm K9 pro for a few weeks now and it works so well. My puppy is very reactive so when I don’t want her barking I just press the button for a couple of secs. It gets her attention, she stops, looks at me then I praise her and she comes for pats. Sometimes I just show it to her and that’s enough.
We live next door to a dog that barks ALL THE TIME and it turned our 2 into barkers as well. We've tried the collars that vibrate when the dog barks and while they worked when worn, the barking was just as bad when not worn. We followed the instructions - using the beep as a precursor to the sonic button - and it worked immediately. They've pretty much stopped barking at things they have no business barking at, but we let them alert us if people come to the door. We also treat them everytime they self manage their barking - so they absolutely understand how this works best for all concerned! AND... the neighbour is SO IMPRESSED she's asked us to buy her one for a Christmas present, which we have. So, come Christmas morning our street is going to be a LOT quieter and peaceful!
My little tiboodle has been a dream to train with Calm K9. I couldn’t believe how quickly she stopped barking.
I bought 2-gave one to my daughter. She has 2 dogs, the groodle is easy peasy however ; the frenchie is another story !
She’s a toughy and when in barking mode, she won’t listen to anyone. She froths at the mouth, her heckles go up and my ohh my… she’s a killing machine 🤭
The funny thing is, she is the sweetest and placid dog you will ever meet !
Not sure how to manage that one. A real problem with other dogs passing by. She’s very territorial.
Maxwell has a problem with the dog next door, whilst treat reward sometimes works to stop the barking and bring him inside, it often doesn't.
It took a few weeks, but now Calm K9 instantly gets the desired result - he comes straight in for his reward.
I'm delighted.
We used this 2 days in a row Shelby and Hugo don’t bark at people walking past .. best thing I have brought in a long time .. a few of my friends have now ordered 👌
Our dogs responded straight away, only used it one or twice, to stop there unacceptable barking, now we just point to them and say no barking or just use the beep button to remind them and they are behaving again, as they definitely don't like us using it again.
My dog would bark endlessly at people walking past. She would also jump and bark against the fence an torment our neighbours dog.
It only took a few beeps followed by a sonic press to stop her reaction. Then only a beep was needed. Now she is quiet and settled getting far more pats and attention than ever before. If she happens to get hyper, I only need to show her the k9 calm now and she will settle down immediately. I occasionally stick my hand over the fence if the neighbours dog gets hyper and give it a press. She settles down straight away. It also works on my sister's dog when he visits. Now ..."I HAVE THE POWER"...😁
After it taking long time to arrive I was hoping it would work on my scruffy mob
I am happy to say it does every time someone drove up our drive they would all bark And run madly to the door
Well after a couple of times using it I only mainly have to have in my have and say no barking and it works 95 % of the time so I am very pleased with my calm k9
I was sceptical to be honest as I had tried so many different ways to stop my boy from barking. I can verify it actually works! The great part is I don’t have to often use the sound as he’s deterred once he sees me with it.
We have only had the calmK9 device a few days and already my dog’s barking is much less. He sometimes still barks out of habit and then stops abruptly as if he just remembered if he keeps barking there will be ‘the noise’ he doesn’t like. We are very impressed It’s the first thing we have used that helps.
The change in my two dachshunds was instantaneous. Once they learned that barking was not an acceptable social activity, the neighborhood embraced the peaceful quiet times.
We have a Rescue Irish Wolfhound cross who in
the last 12 months has found his voice.
Up until now we have had no control over the
very loud bark, that would go every time someone came near our front door, or our poor neighbors just coming out of their front door.
Well so far we have only had to use our Calm K9 Pro
a couple of times.
He now only needs to see it to stop, I am so grateful
We finally have control of him.
And the absolute best customer service.
Thank You Calm K9
Hasn’t made a difference for my Border Collie at all. Have mixed up the frequencies to add variation and still no luck unfortunately. Very disappointed in product, especially for the cost of it.
Not at all. Calm K9 Pro™ is completely safe and pain-free. It doesn’t use shocks or force—just a high-frequency sound that gently grabs your dog’s attention. It’s a calm way to interrupt behaviour and guide better habits, without fear or harm.
Does Calm K9 work for more than just barking?
Yes—and that’s where it really shines.
While it’s great for barking, many dog owners use Calm K9 Pro™ to interrupt jumping, chewing, digging, and leash reactivity. All unwanted behaviours. The ultrasonic sound breaks the behaviour in the moment, giving you the chance to redirect with calm, clear guidance.
Will Calm K9 work on my stubborn dog?
Yes—even the hard cases.
Stubborn or strong-willed dogs often just need the right kind of interruption. The Calm K9 Pro™ cuts through the noise and grabs their attention. Some dogs may take a few uses to get it, but with consistency, they start to link the sound to their behaviour and adjust fast.
How long does the battery last?
Calm K9 Pro™ is built to last.
With a powerful 2000mAh rechargeable battery, it can run for weeks—even months—on a single charge, depending on how often you use it. And with USB C fast charging, you’re back up and running in no time.
No more scrambling for batteries or worrying about replacements.
Will this work on multiple dogs?
Yes—as long as they’re within range, all nearby dogs will hear the sound. It’s a great option for multi-dog homes.
That said, every dog is different. Some may respond instantly, while others (especially more stubborn or reactive types) might need a bit of individual reinforcement to really lock it in.
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