Review on 🐶 DOG CARE Anti Barking Device: Rechargeable Ultrasonic Dog Training Tool with 30FT Range and LED Indicator - Effective Behavior Aid for Outdoor and Indoor Use by Aaron Gonzalez

It works but be aware that this is not a magic button. It's not something you click to stop and it's unwanted behavior with nothing else. He really needs to practice. For example, if my dog barks in front of the door, I give him the "quiet" command. If he does not listen to the command, I press this tool together with the word "no". After all, the dog associates the word "no" with the action of this tool, and it is more effective if the dog listens to your words instead of waiting to see if you have a specific tool in your hands. But this tool definitely works and I like the idea of it more than the e-collar because it's more humane.