Versatile Smart Control Anywhere - Shelly 1 Gen4 is a compact smart relay switch with dry contacts, enabling remote management of appliances via smartphone, tablet, or PC. Operate it locally over Wi-Fi or integrate it with cloud-based home automation platforms for extended functionality. Easy Retrofit & Flexible Installation - Designed to fit behind standard switches and sockets, Shelly 1 Gen4 is ideal for retrofitting into tight spaces like electrical wall boxesno need for complex rewiring or modifications. Next-Gen Connectivity & Protocol Support - Equipped with Zigbee and Bluetooth through a multi-protocol MCU, and fully compatible with Matter, this device ensures secure, future-proof integration. Its built-in web interface allows seamless configuration and real-time monitoring from anywhere with internet access.