Dog Bark Collars New in Box. Shock Collars. I have several new in the box anti bark collars for sale. $40.00 each Collar can expand to 18.5 inches. For dogs weighing 5 pounds to 150 pounds. 40.00 per bark collar. ELECTRONIC AUTO ANTI-BARK DOG TRAINING SHOCK COLLAR Stopping Nuisance Barking This Electronic Auto Anti-Bark Dog Training Shock Collar is a training device to help improve your dog's behavior. If you are annoyed by your dog's nuisance barking, this is the training tool right for you. This collar first applies a warning tone followed by progressively increasing level of tone and shock as your dog's barking persists, giving your pet plenty of warning before it becomes painful. If your dog is quiet for 30 seconds or more, the collar resets to the mildest correction level. In this way, your pet needs only to experience the higher shock levels a few times before learning that the mild sound and shock stimulus is a warning of stronger corrections to come. Your pet will quickly learn to SHUT UP at the mild correction without having to suffer the more intense stimulus.