The technology central to the functionality of smart home devices is the Internet of Things (IoT). IoT enables these devices to connect to the internet and communicate with each other, allowing for remote control and automation of household functions. This technology provides enhanced convenience, energy efficiency, and security for users by enabling features like voice commands, remote monitoring, and automated routines. Smart home systems can integrate various devices such as smart thermostats, security cameras, and lighting systems, creating a cohesive and user-friendly smart living environment.