Keys are still an invaluable part of most people’s lives. We rely on keys to gain access to our cars, houses, apartments, backyard sheds, and maybe even our mailboxes. We all do our best to keep track of them all, but there are inevitably moments when you simply can’t find them — even though you’re positive you put them back in their proper place. They usually turn up eventually, sure, but it’s no fun searching for them. Fortunately, there are iOS and Android-compatible Bluetooth trackers that make it easier to locate your keys, wallet, backpacks, and all the other important doodads in your life. Forget about pulling all of the cushions off the sofa — the right tracker can point you straight to your missing keys. Below are some of the best Bluetooth trackers available, along with everything you need to know regarding their pricing and compatibility.