The ZUS Car Key Finder gadget combines with the ZUS Car Key Finder app to help you find your car key easily within a 75-foot range. ZUS Car Key Finder also offers a remote camera shutter and remote voice recorder function to help you capture important memories.

If you have a key fob, smart key, or transponder key, you can track them. You will need a car key tracking device or an app connected to your key. The device consists of two parts - a remote and a receiver. You use the receiver to send a signal and then you can track it with the radio frequency or Bluetooth.

Leveraging Bluetooth Trackers Devices such as the Tile Mate and Tile Pro are designed to attach to your key fob and, through your smartphone's key fob finder app, allow you to track its location. If your key fob is within Bluetooth range, you can make it ring, making it much easier to find.

When the key is turned in the ignition cylinder, the car's computer transmits a radio signal to the transponder circuit. The circuit has no battery; it is energized by the radio signal itself. The circuit typically has a computer chip that is programmed to respond by sending a coded signal back to the car's computer.