What is a key fob, anyway? A key fob is a small remote device that allows you to control a keyless system. With a key fob, you don’t need an actual key to get into your car. The key fob uses radio ...

They're more secure than you might think.

One of the most useful hidden features is the remote window control function. In many vehicles, pressing and holding the unlock button for a few seconds can lower all windows at once.

The idea of using your phone as a car key is still relatively new. We're not talking about a remote-start function in a dedicated app, either— "Phone-as-key" tech allows your smartphone to act as your ...

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Key fobs do more than lock and unlock your door. They can also remotely control the windows on some automobiles.

Regardless of how many times you press the button or smack the key fob against the palm of your hand, the doors won't unlock.