Bark Free has a specially designed sound selector that lets you choose ultrasonic frequencies which can only be heard by dogs and cats, or lower sound tones audible to human ears. Bark Free uses an old age principle of "Negative Reinforcement using Sound" to help train dogs to stop annoyance barking. Bark Free will automatically turn on when barking occurs.
LED status indicators for ultrasonic and for activation sensitivity
Two tone settings: Ultrasonic (only dogs can hear it) and audible (humans can hear it too)
Audible test button
Wall-mount bracket for indoor and outdoor use
Includes water resistant vinyl cover for additional outdoor protection
"Bark pick-up" feature responds to sounds made up to 25ft. from unit
