Check your speakers’ owner’s manual to see if they are capable of reproducing a 19kHz tone. Most speakers of reasonable quality can do this.
Do  not leave home stereo speakers outside for extended periods of time.

After  using the audible tone (track 4) to set the maximuim volume level, do not increase the level when playing back the inaudible tones (tracks 1 through 3). Even though you can’t hear it, it is sending the same amount of energy to  your speakers.

We cannot be held responsible for damage to speakers  caused by outside exposure or operator error.

Be aware that some people, especially young children may be able to hear these tones, even though you cannot.

Please be careful of the volume around children.

It may take a couple of weeks or more to train your dog completely and of course there are situations where dogs have to bark.

The BarkStopCD Disc may not work if the barking dog is too far away to hear the tones clearly.

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