Bark Free™ Pro Series ultrasonic training device helps break your dog's annoyance barking or boredom barking habit. Your dog's bark automatically triggers corrective ultrasonic bursts to help correct unwanted barking. Advanced dual-speaker design for effective indoor dog training.

NOTE: For outdoor training, see our Super Bark Free Pro ultrasonic dog training device ( Comfort House Item #: 60922F).

Bark Free Pro has a sliding sensitivity control and selector switch for ultrasonic or audible settings. Wall mount or built-in standing design. Powered by adapter (included) or four (4) D batteries. 50' low-lead cable included. Dimensions: 7"L x 2"W x 5.5" H; weighs less than 1 pound. 1-year mfg. warranty.