The PetSafe Indoor Bark Control unit is a great solution to the problem of a barking dog. The Ultrasonic Bark Control Unit sits quietly and unobtrusively sits on a flat surface in the vicinity of where your dog most frequently barks. When he or she does dog barks, the unit goes to work. The PetSafe Ultrasonic Bark Control unit emits a high-pitched frequency that is only audible to dogs. While brief and completely harmless, your pet will become startled by the sound and cease barking. Soon he or she learns that their excessive barking is the cause of the unpleasant noise, and begin to curb the barking habit. The Ultrasonic Indoor Bark Control unit is set to ignore infrequent, short-lived barking, allowing normal “dog talk” to occur. Only when your dog overdoes his or her barking, does the PetSafe Bark Control Unit step in.
The Bark Control Unit is safe and humane and works on dogs of all breeds, sizes and temperaments. It requires a 9-volt battery to operate (which is not included). With the PetSafe Bark Control Unit, you can stop your nuisance barker’s bad habit today!
I have 3 dogs, and this product worked great.....for two of them! My older guy has some hearing loss, so he wasn't affected by the ultrasonic sound. Thus.....he continues to bark and my other dogs run away. If you have a sensitive dog, I would recommend that you not use the product within 3 feet or so.