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Title: Very Disappointed
Review: Purchased this item about 2 weeks ago & tried it out on my neighbors' dogs several times according to the provided instructions. In all instances, the dogs (of varying ages, so hearing impediment was not an issue) did not react at all to the signal emitted by the device. In fact, I have my doubts about whether this device even produced an ultrasonic sound at all! I guess I'll never find out unless I want to spend more $. Don't waste your time & $ on this useless device! I will try to return it to the supplier.
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