Impeccable 121 312 3625

My wife with joint difficulties, this model is perfect. The button is very soft. Do not really support. This works alone with a small thumb pressure without any effort.
I hope he will long seen all the negative comments I've read on other models. Apparently this one gives full satisfaction to everyone.
But my wife is using it for a few days.
Only small downside, the battery is difficult to install. Close the cover is not simple. housing is too short a half millimeter. We must press hard (very) and so my wife can not replace the battery. For me it is no problem. And as the battery should not be changed often. It's OK.