Never place your ears (or anyone elses!) near tweeters when this device is operating, even ultrsonically. The sound output is high enough to cause damage.
Let’s face it, barking dogs can make life a misery. And as
luck will have it, the people who own barking dogs seldom have enough
consideration to anything about it.
This Dog Silencer lets you do something about it. And you can
solve the problem without your neighbours ever having to know that you have
This updated version of the Dog Silencer, first published in
July 1999, incorporates a microphone to sense the dog’s barking. It then
triggers a 2-second ultrasonic warbling blast that will quickly teach most dogs
to keep a low profile.
If you don’t want to use the microphone facility, the Dog
Silencer also has a pushbutton to allow you to trigger the ultrasonic blast at
Because the sound will be in the range of 20-32kHz, humans
cannot hear it but most dogs can.
Of course, we don’t claim that the Dog Silencer will be
effective on all dogs. Ideally, the Dog Silencer should be within 20 metres of
the offending canine to be most effective.