Review on Rechargeable Small Dog Bark Collar - Anti Barking Collar for Small Dogs - Smallest, Humane Stop Barking Collar - Waterproof, No Shock Dog Training Bark Collar - Safe Pet Bark Control Device by Mary Hall

I have a 4.6 lb Pomeranian that bards non-stop. I have 4 other dogs and as soon as one of them barks everyone barks but her and my other pom doesn't listen. After 5 minutes she stopped barking. Before that I had another guy who was so shocked he changed my Sheltie's character and I had to kick him out. It just beeps and vibrates. If they keep barking, the vibration will increase. Worked so well I ordered another one for my other 8.5lb pom pom. I can't wait to sleep well!