It works but you have to be there to take it out once I put it on and couldn't do it again if you can stand to see the dog cry then yes if not don't get it

Nah, it didn't do anything (Jack Russell) - better consult a dog trainer, like I did, and after a few lessons, we're okay.

It does its job perfectly, it has 2 settings hi and low. On low, it doesn't have a significant effect, but it might be due to the battery.

In the first days, it was amazing; later, it felt like I wasn't wearing it. The result? The neighborhood can still hear us.

I have a dog that gets anxious about everything, resulting in barking all day and all night. I can't leave the windows open because it can be heard throughout the neighborhood. We have tried 2 years of training, calming collars, cannabidiol, and flower essences, but nothing worked. Half an hour of using the collar: He sits on the balcony, the doorbell rings, but no barking is heard. Very good. One minus star because it doesn't have an on/off button and it activates with the barking of other dogs.
Day two: I didn't need to use it again. He listens to the first command I give. On the balcony, sir, during walks we pass by other dogs and he doesn't attack. It's miraculous...

I have no words,
it is a FANTASTIC product,
before I put it on my dog, I tried it on myself (to see if it causes a strong shock) and I didn't feel anything.
The battery lasted for 3 months for me, but I only put it on him when I leave him alone,
meaning about 3-4 hours a day, day after day,
it is truly a value for money product, as just by seeing it in my hands, I feel like putting it on him, which means he doesn't find it unpleasant,
fun fact: the battery has been empty for a week now, but just by wearing it, he has the illusion that something will happen if he barks,
I recommend it!

I cry from my joy.
My uncle has left his dog in the plot next to ours, in front of my window.
This dog doesn't stop barking, day and night.
I put on the leash. Within a few hours, silence.... I slept in peace....
Today is the second day, it seems so unbelievable I had to go to the plot to see if it's alive. It's alive.
Minus one star because the battery came dead/rusty.