Medical Alert
Tried the initial one that was sent and it did not work the way it was sold to me. You had to be within 15 to 20 feet from the unit for them to hear you. I sent it back and they sent me the one you wear around your neck with the capabilities of just pressing the button and they hear you and and you hear them. This was what I was looking for. It also has GPS good anywhere in the U.S. and a fall detector. This is the only way to go. Get it and be more secure.