It's a noble product .Only those can valuate who seen some one using or using self.Old people can equipped by these products, doesn't mean others can not.
On the Go Medical alert ,a ultra compact alert system ,very much required for old age.Two members are using this item ,long lasting battery.Emgerency numbers ,help to contact dears with no time.Can talk easily while walking,cooking ,or doing any job.Need not to hold every time,can be kept around the neck too.
Almost free I suppose if see the performance and importance,this is of no cost.
Great idea should must be appreciated especially if helpful for old persons. Must think about it.