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. But no matter which kind you have, ...

Brendan is a freelance writer and content creator from Portland, OR. He covers tech and gaming for Lifehacker, and has also written for Digital Trends, EGM, Business Insider, IGN, and more. Someone ...

Newer cars come with a key fob of some sort, whether as a separate device attached to your keyring with buttons to lock and unlock your car, or integrated into the key itself. These fobs send a ...

We may receive a commission on purchases made from links. For the sake of convenience, the battery in your car's key fob is designed to last a fairly long time, usually up to around four years. The ...