Review on 🐶 MODUS 2-in-1 Dog Barking Control Device - Automatic Anti Barking with 3 Adjustable Ultrasonic Levels, Indoor Dog Bark Deterrent Box – Safe for Humans & Dogs, Sonic Bark Control for All Dog Breeds by Debbie Jones

I connected the battery and waited for my German Shepherd to bark for the first time and then she barked BUT ONLY ONCE, after that it was quiet. It's been 4 days now except once again inside and once the first time I've taken her and it outside. It's complete again for the first time in 6 months. She's not that excited because she doesn't start barking. I very much hope that this will continue. I also redirect with the command "don't bark" when she runs to the window and door and wants to bark but comes to me for a reward/treat instead.