The Ultrasonic Bark Control Pet Training System is a small unit designed to control your dogs barking with ultrasonic sound. The unit is activated when the internal microphone picks up the constant barking from the dog. The high-pitched ultrasonic sound startles the dog which interrupts the barking.
The Ultrasonic Bark Control can be set to work automatically or for manual operation. Operates on one 9-volt battery (not included).