The USPS dropped the ball as they didn't deliver it when they were supposed toit was scanned as delivered on Sat. however it was not delivered until Sunday along with my regular mail.your product doesn't have a good range. If there is an obstruction such as a wall it' doesn't work. So your product needs to have much more power. It also need different frequencies. When there are 2 or more dogs present.if one dog is barking and the other one isn't ...there is no way to alert the barking dog.
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