Roui Ultrasonic Bark Trainer
- Stops barking instantly - no collar needed
- Safe, pain-free for all breeds and sizes
- Works up to 50ft - indoors, outdoors, through fences
- USB-C rechargeable - 30-day battery life - 3 modes
“My neighbour threatened to call the council because of my dog. I tried everything. Ordered Roui on a Tuesday — by Thursday she knocked on my door just to say thank you. I wish I found this two years ago.”
“Pressed it once and my dog just froze and looked at me. No more barking at the mailman. I genuinely wish I found this sooner.”
Trusted by dog owners
all over the world.
"My dog stopped barking on the very first try."
I pressed the button once and my dog just froze and looked at me. No more barking at the mailman.
- Maria T.
"Finally got a good night sleep."
My dog used to bark all night long. After a few days with Roui, my whole house is quiet.
- Derek S.
"No more guilt, no more stress."
I tried a shock collar once and cried for an hour. Roui works just as fast without the guilt.
- Rachel F.
"I can work from home in peace now."
My dog barked at every little sound while I was on calls. Roui fixed that in less than a week.
- James P.
10,000 dogs trained.
All over the world.
"Very effective on our small dogs. Does not appear to hurt them but they are very wary of the frequency. Only have to show them the Roui now to stop them barking."
"This works great! I was tired of the neighbours dogs barking all day. Even my coworkers on calls were annoyed. I just point it at them and they stop immediately."
"Works so well I was shocked. Even on a partially deaf dog it was instantaneous. Purchased 2 because I cannot be without one on walks."
"Does not physically hurt him at all. It has been helping curb barking, digging, and chewing on furniture. My kids also take it on bike rides."
"I never thought it would have such an effect on my spoiled dog. Not only does he not bark but he actually listens to me now."
"Works great on my neighbours German Shepherds. From 40ft it stopped them mid-bark. I was not sure it would reach but it absolutely did."
Free shipping - 30-day returns
We made dog training ridiculously simple.
Your dog won't feel a thing.
No shocks. No sprays. No contact. Roui uses safe ultrasonic sound to redirect behaviour — instantly, humanely, and without a single moment of stress for your dog.
Point. Press. Done.
No setup. No app. No collar to fit. Take it out of the box and it works in seconds. One button is all it takes.
Works from across the yard.
Indoors, outdoors, through fences, on walks. Even stops the neighbour's dog from barking. If a dog can hear, Roui can reach it.
Three steps.
Zero stress.
Spot the behaviour
The second your dog starts barking, pick up Roui and aim it their way. That's it. No timing, no technique, no training manual to memorize.
One press. That's literally it.
Roui sends out a safe ultrasonic sound only dogs can hear. You won't notice a thing. Your dog absolutely will. Watch them stop mid-bark.
Quiet dog? Give 'em some love.
When they settle down, praise them or toss a treat. Do it enough times and your dog starts to figure it out. Peace and quiet, on repeat.
How to use Roui
Seriously, this takes about 60 seconds to figure out.
Charge it up
Plug in the USB-C cable. Red light means charging, green means done. Battery lasts up to 30 days. You'll barely think about this.
Turn it on. (Two seconds, literally.)
Hold the button for 2 seconds until it flashes. You're in. Three modes available — start with Mode 1 and go from there. Done.
Point it at the chaos.
Dog barking? Jumping? Being a menace? Point Roui their way and press. Works up to 50ft. You don't even need to get up.
Do it every time. Trust the process.
Consistency is the whole game here. Use it whenever the behaviour happens and your dog will start connecting the dots embarrassingly fast.
Treats. Praise. Good vibes only.
The second they calm down, reward them. They are not being punished — they are learning. Big difference. And honestly? They will love you for it.
Good to know
Point. Press.
Watch what happens.
Roui sends a safe ultrasonic sound that only your dog can hear — and just like that, the barking stops. No collar to strap on. No app to open. No technique to learn. It lives in your pocket and works the second you need it. At home, in the backyard, on walks. Whenever your dog decides it is time to be a lot.
We built Roui because
we have been there too.
We are a small team of dog owners who know exactly what it feels like when your dog will not stop barking. Not just at the mailman but right in the middle of a Teams call with clients listening. Or when family comes through the door and your dog loses it.
It is embarrassing. It is stressful. And it makes you feel like you are failing your dog.
We tried everything including training classes, citronella collars, and shock collars. Nothing felt right. Either it did not work or it felt cruel. So we went looking for something better.
Roui is what we found. A simple humane device that uses safe ultrasonic sound to redirect your dog instantly. No pain, no fear, no gadget to figure out.
We are not a big corporation. We are dog people just like you. We stand behind every order with a 30-day money-back guarantee.
Why Roui works better
No collar. No pain. Just results.
Collar
A quieter home starts today.
Over 10,000 dogs trained. Yours could be next.
Get Roui — $40Free shipping · 30-day returns · Secure checkout