Remote Keyless Entry is a technology that allows vehicle owners to unlock and start their cars without using a traditional key. Instead, it uses a small remote control or key fob that sends a signal to the car's receiver. When the button is pressed, the car responds by unlocking the doors or enabling the ignition. This system enhances convenience and security for drivers. Many modern vehicles come equipped with Remote Keyless Entry as a standard feature, making it easier to access the car, especially in adverse weather conditions. Additionally, some systems include features like keyless ignition and panic buttons for added safety.