The technology that facilitates communication between multiple devices in a smart home is often based on IoT (Internet of Things) protocols, particularly Zigbee and Z-Wave. These protocols enable various smart devices, such as lights, thermostats, and security systems, to interact with each other and with users' mobile applications seamlessly. By establishing secure and reliable networks, IoT technologies allow for automation, remote operation, and real-time monitoring of home systems. This interconnectedness enhances user convenience and creates a more efficient and responsive living environment.