I am not at all happy with this device. We selected MonileHelp because it was the top rated device on AARP, but we now feel that rating was paid for. If you need a device for an elderly person who is frail, or has ANY memory loss at all, this is NOT the device for them. They will tell you the device battery’s charge lasts 4 days, but it does not. It must be charged daily, for 3 hours, and MobileHelp recommends charging at night. I do not feel my mom is one bit safer with this device. And in order to get what I need for Mom, they’re saying she will have to wear 3-4 devices. It’s awful. It is NOT for an elderly person.