This Dog Silencer is small and very lightweight, but highly effective. Stops unnecessary barking in homes or kennels easily and safely with an ultrasonic tone that is unpleasant to dogs, but unheard by humans. Unit is designed for indoor and outdoor use (when protected from weather) and controls barking within 25" by automatically activating when dogs bark. Plugs into regular 110-volt electric outlet. Includes 50" cord. Great alternative to training collars.

Features

• Measures 8 1/2"L X 4 1/2"D X 3"W.