For many years I've wished there was a key ring that I could just phone up to track down my keys when I mislaid them, I do it more often than most people it seems. And its here!
Though it uses Bluetooth rather than the network which is fine as distance wise as I usually have some inkling of the location of where they may be lurking. Did a bit of research before I decided on Chipolo and happy I made the right choice. It's range is good, as is the volume of beeper. A bonus is that you can reverse it to find you phone from your keys also. You can replace the batteries unlike others that are sealed for life and there is no subscription to pay.
Oh yes, the first day I got them, I'd moved my car out of my field, shut and locked the gate, when back to my car which was blocking the road and found I hadn't got my car keys. Convinced I'd dropped them somewhere in the long grass i went back in the field and called up the Chipolo I could hear it beeping and walked around trying to get a fix on it, felt so stupid when I discovered they were in my wellie boot having missed my pocket and slipped between my overalls and trousers!
I wouldn't have found them until I'd searched the field in vain, walked home and taken my boots off. And blocked the road for half a day! I wouldn't be without my Chipolo now. Value for money? definitely!
r.m.arnold