I bought one of these back in Nov for my 84 year old mom.
She listens to Pandora radio most of the day, so when she is moving about in the house she left the phone plugged into a Bose sound dock ( In her bedroom , she has a Samsung Galaxy )

When I would call her cell, very seldom could she make it in time to answer .
So far the BTR-100 has saved me many miles of driving ( 57 miles one way ) because I could not get hold of her .

It is tuff learning older folks on new technology ,yet once we set it up for her she hasn't experienced any problems.