Waste of money

Really disappointed! I bought two repellents and they both don’t seem to work, my neighbor’s dog keeps pooping on my front yard and the dog seems to not hear the sound. I tried different levels and no luck. The most annoying thing is that one of the two doesn’t stop making the sound even when there is no movement. I had to get up in the middle of the night to turn it off. Even though the description says human can’t hear the noise, we can clearly hear it and my daughters have complained it hurts their hears. I really don’t recommend this product!

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