Thoughts on these new little tracking devices for keys?
 

My daughter is always losing keys all over the house in couches, the laundry, drawers, etc.
I'm thinking about getting her this new little tracking device as a little christmas present.

I don't have a smartphone, so do you think it would be a good idea (she does have one)?

-thanks

Mine goes through batteries quickly but I use it quite often. If not trying to find my keys, it helps me find my phone (by shaking the keys- the phone sounds an alarm even when on silent).