433Mhz 2CH RF Relay Receiver & Transmitter AC220V — Universal Garage Door/Gate Motor Remote, Smart WiFi Control

Basic operation: press the A button to activate the relay; pressing A again will stop it. Latched mode: press A to turn the relay on, press C to turn it off, and press B to stop the relay. To set Toggle mode: press the learning button 2 times, then press A button once and press B button once to complete the setup. To set Locked mode: press the learning button 3 times, then press A button once, C button once and B button once to complete the setup.