PetSafe Ultrasonic Bark Control

This tastefully designed tabletop device can help safely control your dog's barking from up to 25 feet away. Whenever your pet barks, a 2-second ultrasonic correction tone can be delivered either autromatically or manually, no receiver collar needed. Correction level or volume is around 120 dB at one foot from the transmitter. Emits high pitched tone as correction that is not audible to humans. Battery will last up to 6 months or about 2,000 activations. Uses microphone to sense for barking. Light flashes as a low battery indicator. Light comes on to indicate correction. Can be mounted on a wall or set on a table/floor. Uses a 9-volt alkaline battery. ~