Look in your pocket, purse, bag, or junk drawer and chances are you’ll find a key fob. The basic ones lock and unlock your car’s doors. The fanciest do much more. No matter which kind you have, ...

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 ...

Gone are when you couldn't start your car's engine without a physical key. Modern vehicles today come with key fobs that are more useful than just starting your car and locking and unlocking its doors ...