This was the perfect solution for us! My elderly mother lives with us and we needed an easy way for her to call us when needed. We put several remote buttons and plug-in bell units around the house so she can ring for us and we can hear her no matter where she is or where we are in the house. Also, we got one on the battery-operated bells that we can take outside by the pool or while doing yard work and will always be able to hear her ring. It even works all the way to the neighbors backyard so we can sit out and visit with them and STILL be "in touch" with Mom. The entire system gives her a much needed sense of security and we can still go on with our daily chores, whether inside or out, and know we are always within her reach. I have recommended this system to friends who are in a similar situation and they have purchased and loved it as much as we do. It should be marketed for this purpose! It's fantastic!
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