PATPET Training Collar is a remote dog training system that usually consists of a wireless remote and a wireless receiver. Control your remote and send signals ( tone, vibration, or a stimulating sensation) to your dog to help them understand "good behavior" and "bad behavior." You can adjust the stimulation to a level that is best suited to gently communicate with your dog. This “best level” can be locked to prevent over-stimulation and easily adjusted for a higher distraction environment when necessary. When you’re looking to improve your dog’s behavior at home or public, This PATPET P-Collar 680 remote dog training collar is the best choice for you.