Well, the basic concept of having a safety alarm device on hand for possible use by someone in need of care seems to be handled well here. But the "fall" device we tried was a disaster. The first day my wife simply was removing it from her neck and the alarm went off! We pressed the button on the home base and said it was an error, but the mobile unit was still broadcasting a message as to whether or not we needed emergency help. Really, it we respond to one unit why does the other still keep going. The same thing happened several days later when she simply bent over to get something on a lower shelf in the freezer. We canceled the next day, because the device it useless if it keep giving false alarms for every day fractions. We swapped for a regular pendant and got the sheet on how to calibrate it, but the guy on the phone said never mind, he could do it from his end. Nice, but not what it emphatically states in the info sheet that came with the new one. Seems like you don't have your act together. And lastly, how dare you to tell me to speak to you before I give a low rating! Were you going to try to raise my opinion to great. If so than the ratings are useless, but I doubt you will let this one be published anyway..