Dog Barking Control Collar. Brand New. Dog Bark Collar is specifically designed to gently train your medium or large dog to stop barking using only a very effective pattern of sounds and vibrations which quickly train your dog to stop barking. Our anti bark collar adjusts for neck sizes from 9 all the way to 22 inches so it will fit even the largest breeds. And we provide 2 different vibration stubs to work with both short haired breeds and dogs with lots of beautiful thick fur. The simple and easy interface allows you to adjust the sensitivity level of the bark sensor. The black dog collar is adjustable for your dog’s neck and we include a spare battery to give you many hours of use. We also provide both a blue and black faceplate so you can choose the plate that best matches your dog’s personality.