Smart Remote Control: SONOFF Zigbee switch can set a countdown, schedule, and loop timers to smart your light. It supports the APP and voice remote control, which makes your life easier. Home Assistant Compatible: Integrates seamlessly with Home Assistant using Zigbee2MQTT, offering smart light control and effortlessly managing your home's lighting system. Super Tiny Size: This smart light switch is 40% smaller than the SONOFF ZBMINI smart switch. The size is 3.95 x 3.3 x 1.68 cm, which suits any standard junction box installation. Support External Switch: Our relay switch can work with various external switches to control your devices, such as rocker switches, to achieve two-way control. Relay Function: SONOFF smart switches for lights support the relay function, which can easily improve the quality of Zigbee communication. You can turn on the turbo mode to enhance the signal strength., Manufacturer: SONOFF