No more installing an expensive GPS system to keep track of your car. A California-based startup company created a tiny device that works with your smartphone, and it could be exactly what you're looking for.

It's called TrackR. It is a state-of-the-art tracking device the size of a quarter. You just have to install the free TrackR app on your smartphone, connect the app to your device and you're ready to go! Simply attach TrackR to whatever you want to keep tabs on. The entire process of setting it up only takes 5 minutes or less.

If your item goes missing, the TrackR app records its last known location on a map. When another TrackR app user comes within Bluetooth range of your lost item, its location will be automatically updated in your app.

TrackR has unlimited possibilities. The device is small and unobtrusive enough that you can attach it to your pet, wallet or keys.