[Extreme compatibility] - A powerful central control device that can manage all Tuya smart devices and smart scenes in a unified manner. One-touch control of smart switches, smart sockets, smart sensors, smart lights, smart curtain switches and other devices, and supports quick triggering of smart scenes. [4-inch high-definition multi-touch screen] - 4-inch high-definition LCD display, supports multi-touch, equipped with light sensor, smart screen saver, screen wake-up, voice wake-up, touch wake-up are all available, perfectly adapted to modern smart life. Embedded design, compatible with European standard bottom box, easy to install. [Smart device synchronization function] - Supports synchronization of all devices with different protocols in Smart Life/Tuya Smart APP to the control panel, realizing cross-protocol centralized management. [Two-way call function] - Supports two-way voice calls. After creating a family group, you can talk with your family members instantly through the panel. [Built-in Zigbee & Bluetooth dual-mode gateway] - The multi-protocol gateway supports Zigbee and Bluetooth dual-mode communication. Bluetooth Mesh and Zigbee technology ensure stable connection. 100+ sub-devices can be added, which is convenient to use and cost-effective. (Official module devices support synchronization between app and central control screen. After unofficial module devices or zigbee3.0 version devices are connected to the app, they do not support synchronous display and viewing of the central control screen, and only support app viewing) Product name: Intelligent multi-function central control panel Input power: 100-240V AC, 50/60Hz Operating temperature: 0℃ - +40℃ Operating humidity: 5%-90% RH (non-condensing) Wireless protocol: WiFi, Bluetooth, ZigBee Dimensions: 86x86x36mm Notes: 1. Built-in Alexa voice assistant, does not support external speakers to control the central control screen 2. The device connected to the central control screen is compatible wit