Verified Reviews
What dog owners are saying
Our rescue dog is finally calm when we leave
We adopted Biscuit 18 months ago and the separation anxiety was heartbreaking — neighbours complained constantly. After two weeks with the Kai-9 in the hallway, the difference is remarkable. She sleeps when we're out now instead of destroying things. I genuinely cannot believe how much this has changed our lives.
Transforms car journeys completely
Our border collie Max used to shake uncontrollably the moment we got near the car. I put the Kai-9 in the footwell on our first long drive and he settled within 20 minutes. Genuinely couldn't believe it. We've done three long trips since and he's been calm the entire time.
Vet recommended, science backed
Our vet mentioned frequency therapy as something to explore alongside behaviour training. The Kai-9 is the most affordable and practical option we found. Combined with training it's been transformational for our anxious spaniel. Our vet was impressed with the results at our last check-up.
Three dogs, all noticeably calmer
We have three dogs of different breeds and temperaments. All three have visibly settled since we started using the Kai-9. Less barking at the door, less pacing at night, and our youngest finally sleeps through. I didn't expect it to work on all three — but it did. Worth every penny.
The science actually makes sense
I'm a nurse so I was sceptical about anything claiming to use 'frequencies'. But when I read about how canine nervous systems respond to electromagnetic disruption it clicked. Our dog's anxiety isn't just behavioural — it's neurological. The Kai-9 addresses that. Two weeks in and the change is real.
Finally stopped the 3am barking
Our lab would wake the whole house at 3am with barking every single night for months. We'd tried everything. Placed the Kai-9 in the kitchen two weeks ago. He's slept through every single night since. I don't know exactly how it works but I genuinely don't care anymore — it works.
Visible results within 3 days
I was sceptical but desperate — our cockapoo had developed severe separation anxiety after lockdown. Within 3 days of placing the Kai-9 in the living room there was a noticeable difference in how settled she was when we left. By the end of week two it was like having a different dog.
The packaging alone tells you this is serious
Before I even switched it on I knew this was a quality product. The packaging is beautiful and thoughtful. Our greyhound Archie has always been highly strung — within a week he was noticeably more settled at night. The product lives up to the presentation completely.
Solved our fireworks problem
Our lurcher goes into a complete panic with fireworks. This year we had the Kai-9 running in the room with him during a local display and the difference was night and day. He was unsettled but nowhere near the distress we usually see. This is now going to be a permanent fixture in the house.
Our behaviourist noticed the change immediately
We've been working with a dog behaviourist for six months on our dachshund's anxiety. When we mentioned we'd started using the Kai-9, she said she'd noticed he seemed more receptive at sessions and asked what had changed. That's pretty telling when a professional notices before we even mentioned it.
Finally sleeps through the night
Our whippet Ruby has always been a restless sleeper — pacing, whimpering, getting up at all hours. Since the Kai-9 went in the bedroom she sleeps through from 10pm to 7am without moving. She actually looks rested in the morning now. We're sleeping better too — probably because she is.
I bought a second one for the car
Results were so good in the house that I bought a second unit specifically for the car. Our spaniel mix used to drool and shake on any journey longer than 10 minutes. Since having the Kai-9 in the car he's settled and calm. We've just done a 4-hour drive without incident.
Completely changed our mornings
Every morning used to be chaotic — our dog would bark, pace, and work herself into a frenzy as we got ready for work. Since the Kai-9 has been on our routine has completely changed. She settles while we get ready and doesn't follow us to the door anymore. It's made getting to work so much calmer for all of us.
More effective than the anxiety vest
We'd been using an anxiety vest for two years with limited results. The Kai-9 outperformed it within days without any fuss or preparation. Our setter used to need 30 minutes of settling before we could leave — now we just switch it on and go. Wish we'd found this sooner.
The quality is exceptional
The device itself is beautifully made — solid, compact, and minimal. Looks great on a shelf. But the results are what matter: our Australian shepherd has always been reactive and anxious. Within a week of using the Kai-9 she was calmer in the house, less reactive to sounds outside, and sleeping more deeply.
Genuinely surprised — and I'm a sceptic
I bought this mostly to appease my partner who was convinced it would work. I expected nothing. Within five days I was asking her where she'd read about it. Our Jack Russell's reactive barking at the window has reduced dramatically. I've since read all the science. It makes sense. I'm converted.
Our foster dogs settle so much faster now
We foster rescue dogs and the first few days are always the hardest — new environment, high anxiety, unpredictable behaviour. Since having the Kai-9 in our home our new fosters settle noticeably faster. Some are calm within hours rather than days. It's become an essential part of our fostering setup.
Sleep improved for the whole household
It's hard to explain but the atmosphere in the house has genuinely changed since we plugged the Kai-9 in. Our two dogs sleep deeper, we all sleep better, and the general energy in the home feels more settled. Whether it's purely the dogs being calmer affecting the household I can't say — but something has shifted.
Remarkable results with our rescue
Our rescue staffie came to us with severe anxiety from her previous environment. The first two weeks were extremely challenging. A trainer suggested we try frequency-based calming alongside our sessions. The Kai-9 arrived and within days she was visibly more settled. Our trainer was genuinely impressed.
Worth every single penny
At £45 I thought it was worth trying before spending hundreds on more training or supplements. The results after two weeks are better than anything else we've tried. Our golden retriever is calmer, sleeps better, and doesn't destroy the house when we leave. Best £45 I've ever spent on any pet product.
The unboxing experience is special
When it arrived I was struck by the attention to detail in the packaging. You can tell immediately this isn't a cheap gimmick — it's a properly designed product. And the results match the quality. Our anxious terrier cross has been so much calmer. We've already recommended it to three friends.
Used it alongside training with brilliant results
Our dog behavioural trainer suggested we try something environmental alongside our sessions. The Kai-9 was the best suggestion I could have followed. The combination of training and having the device running has produced results that neither alone was achieving. It's now a permanent part of our anxiety management toolkit.
Stopped the destructive behaviour
Our labrador had been destroying furniture while we were out for nearly a year. We'd tried every suggestion — kongs, tv on, treat toys, crates. The Kai-9 is the first thing that's actually worked. Three weeks in and the destruction has stopped entirely. We're slowly phasing out the crate now.