Automatic No-Bark Dog Training Shock Collar for small and medium dogs. The Electronic No-Bark Dog Training Shock Collar for small and medium dogs will make your dog stop barking within days. If your dog barks, the collar will give a shock and progresses up to five time stronger if your dog’s barking persist. The collar will then shut-off automatically for up to 2 minutes to protect your dog and resets back to the mildest shock. The No-Bark Training collar can used indoors or outdoors. Is your dog’s barking uncontrollable that it's starting to get everybody annoyed? Are you finding it difficult to train him/her using orthodox methods? You are not alone. Many dogs simply do not respond to traditional training methods which is why thousands of owners and professional trainers have used this anti-bark dog training collars to assist them in their training programs. As we all know an out-of-control dog can be a danger to themselves and others. It can help you achieve a well trained and contented dog within days. PetStoreUnlimited offers a variety of No-Bark Collars from Remote Spray Commander, Citronella No-Bark, Ultrasonic, Spray, to Electronic No-Bark.