Review on BIG DEAL Anti Barking Device: Stop Dog Barking Indoors & Outdoors with 50 Feet Range - Safe Training Tool for All Dogs by Rachel Cooper

I installed this at home first. My dog is a small Cavachon, 18 lbs. She doesn't bark, as the saying goes, unless someone rings the bell or knocks on the door, but even when she barked, it didn't matter if this device was active. Then I hung it on a tree next to the fence about 10 meters from where a small dog barks next to the fence. I left it there for 5 days and nothing. The dog still barks when the dog and I go outside to spend time in the garden. It rained yesterday and now the item does not work at all even though it is waterproof. Very cheaply made and not worth the money. I'm not sure where all the great surveys are coming from (that's why I bought them), but they clearly don't match what they write or how they're advertised.