This is a telephone and it can be used by everyone. This can also be used as a decorative thing at home. One can also personally leave a message for the old lady so she can read it later. She can also call the person who she wants to.
And she can also pre-save the numbers and she can call anyone in an emergency also. One of the helpful and unique gifts for 90 year old grandma. This is not portable so it has to keep in one place.