I have a small Chihuahua always the other dogs and small children extremely barked. I was at the dog school but nothing has helped. Bach Flower Remedies for Dogs I had tried but did not help. The Bark Control Collar is worth gold because my dog no longer barks. TIP: The only thing I noticed is that you have to put a little more closely the tape so that the sensor responds to the barking. Finally the walk is fun again. ;) I can recommend it aujedenfall.