• Voice control and remote control: turn on/off electronic devices remotely with the Tuya Smart/Smart Life app. • Compatible with Alexa and Google Assistant for voice control. • Working modes: momentary, self-locking, and interlocking, configurable in the app. • In momentary mode, the switch turns off automatically after 1 second. • In self-locking mode, the relay turns on or off when the button is pressed. • In interlocking mode, one relay is open while the others remain closed. • Build your smart home with lights, fans, garage doors, and more. • WiFi setup: only supports 2.4G WiFi network connection. • Includes 433 MHz RF remote control and user manual.