Medium/Large Anti-Bark Bark Control Dog Training Collar 

This Electronic Auto Anti-Bark Dog Training Shock Collar is a training device to help improve you 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.

In reality, the loudness of dogs' barking varies from one to another. With adjustable sensitivity, the collar can be set right for your dog. 

Included with your purchase is our guaranty that you will be happy, or your money back. The product comes with a 30-day warranty which is backed by excellent customer service so you can be sure that your satisfaction is guaranteed. See Return and Warranty for details.