Do not tell a salesman to call you back at some future time, like a week, and expect not to receive the product without the call back. This happened to me! I did not give the salesman my card number, only the name of the person I was considering purchasing it for. He looked up the address himself and evidently my master card number. I wanted to ask the person if they could wear the Call Button around their neck or on their wrist. As it turned out, they could NOT. Now I am being harassed by MobileHelp by phone and by email to pay for something I did not order, cannot use or return. The person I wanted it for has had two heart attacks and a pacemaker since I ordered it and was in the hospital when it was delivered. He is in no condition to return it to Mobile Help!!