Not Ranked
Steve,
I just called that place and ordered two of the Dog Bark Pro units. They told me they do have a range of 300' and that the batteries will normally last from 4 to 6 months depending on how much it is used. That will be perfect for my problem as the worst dog is about 150' away. If you want, I can let you know how they work when I receive them. They are shipped vai regular mail and should arrive next week.
Ron
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