Petsafe Indoor Bark Control Pbc19-14778

When the PetSafe® Indoor Bark Control is within range of a barking dog, an internal microphone picks up the sound. The unit automatically emits an ultrasonic tone that can be heard by dogs but is silent to most humans. Startled by the high-pitched tone, the dog should stop barking. In time it will associate its bark with this unpleasant noise. When the dog stops barking, the ultrasonic tone also stops. It is effective up to 8 metres. Key Features Automatically deters excessive barking No collar needed Two units included for multi-room coverage Freestanding or can attach to doors, windows, tables, etc. Features For indoor use only For dogs of any size Range up to 8 metres Ultrasonic sound only your dog can hear Microphone detection Water resistant Uses 4 x 3 Volt lithium batteries (included) Good/low battery indicator