Build something battery powered, and hide it closer to the offending
dog's house?

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"jamesgangnc" wrote in message
...

I had one of that companies and it triggered. But as I mentioned
before that was only when the dogs were close to our proerty line. It
did seem to keep them from barking along our side which helped some.
The op is talking distances around 200 yards and there is no sonic
device with that range. You need to roll you own with about 20 piezo
tweeters and a several hundred watt amp.