Six levels of progressive static stimulation Customise to your pet to eliminate or reduce excessive barkingNo False Stimulations Vibration detection of your dog’s bark ensures another dog barking or other noises will not cause a false stimulationProgressive Stimulation Finds the right level for your dog by beginning with the lowest level of static and increases in stimulation level if the barking continues; automatic safety shut off after 50 secondsWaterproof Collar For all of your dog’s outdoor activities