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Title: I've had great luck with this unit
Review: I am puzzled by all the negative reviews for this item, since I have had great luck with these at my home (kitchen with extra set going to garage) and my sister's home (back of house and upstairs bedroom with two receivers). Infrequently, we do get the extensions going off without the doorbell ringing, but not very often. Just bought a set for my in-laws, too.
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