For many drivers, our car key fob is just as invaluable as our keys themselves. When's the last time you opened your car door manually with a key? Besides unlocking and locking the doors, the gadget ...

How Does Your Key Fob Work? The key fob uses wireless technology with a frequency of 433 MHz. There are receivers/transmitters on the vehicle and the key, so they can communicate with each other. This ...

Long gone are the days of having to use an actual key to unlock your car doors. Modern vehicles typically come with a remote key fob — a term with an interesting backstory — allowing you to lock and ...