Cube Tracker, Pro, and Shadow use Bluetooth to make a connection with your device. Once the connection is established, it relies on the GPS Location Services of your device to update the location information of the Cube Tracker app. The Cube itself does not use GPS. Your Cube needs to be within the standard Bluetooth range (Up to 200 feet depending on the environment) of a device that has location services in order to communicate its location to the app. This means Cube cannot track objects as they move in real-time unless there is a device within range moving with it. (i.e. your car keys and phone traveling together.)