I'm hoping maybe someone out there has bought products like this. I just got a new car that has a keyless ignition, which means they key fobs I was given cost more than the $250 or so keys my previous car had. My mom got hers replaced recently for about $500 and has already misplaced one again. So I thought what would be great is a little device on the keychain that would work with an app about like Find My Friends does with people and iPhones. But I also would want it to maybe be more accurate at close range through Bluetooth or something so you could at least peg it down to a room. Maybe it would also have a speaker that would be pinged to beep. I remember seeing ads for Tile, and it sounds like a decent product to try for $20 despite the strange, wasteful battery that can't be replaced. But I have also seen "preorder" ads for a year, meaning who the hell knows if this thing will every be real. Ah, crowdfunding. I did a few searches online and found a few reviews. Elgato Smart Key seems to be one of the best rated devices on Amazon, except it just uses Bluetooth and has no GPS. It's about $33, which is a good price, so I'm wondering if this is he best option. Since these keys cost hundreds to replace and I'm forgetful, $75 per device might not be a horrible investment if it will allow you to track keys down like the NSA would. So I'd love some opinions. The Elgato product sounds like at least something that would be better than nothing. My mom and I both lost our keys around our homes, so it's not like we have an instance of losing them across a wide geographic area. It just sounds like a possibility I'd like to prepare for if it doesn't cost too much more. An aside: Carmakers, allow us to do all this stuff with our phones! If I could start and unlock my car with a smartphone, I'd probably never carry the actual keys.