Learning: Press the learning button, the indicator flashes and turns off. Release the button, then press any button on the remote transmitter. The indicator flashes three times, indicating learning is successful. (Press the learning button the required number of times based on the desired working mode.) Clearing: Press and hold the learning button for about 8 seconds. The indicator light flashes several times and then turns off. Press any button on the remote; if the relay does not respond, the code has been cleared successfully. About Receiver: Model No.: -C211008 1. Working voltage: DC 12V–36V 2. Quiescent current: Less than 6mA 3. Working temperature: -40°C to +80°C 4. Receiver sensitivity: Better than -105dBm 5. Working frequency: 433MHz 6. Maximum load current: 10A About Working Modes: Working mode is changed by pressing the learning button. - Momentary: Press the learning button once. Relay: Press to turn on; release to turn off. - Toggle: Press the learning button twice. Relay: Press to turn on; press the same button again to turn off. - Latched: Press the learning button three times. Relay: Press to turn on; press another button to turn off. - 2 Channel Momentary + 2 Channel Latched: Press the learning button four times. - 2 Channel Momentary + 2 Channel Toggle: Press the learning button five times. - 2 Channel Toggle + 2 Channel Latched: Press the learning button six times. About Transmitter: 1. Buttons: 4 2. Working voltage: DC 6V 3. Operating frequency: 433MHz 4. Remote distance: 50–100 meters 5. Operating current: 12 mAh 6. Encoding: EV1527 Remote quantity: 1 piece Color: White and Black Material: Plastic and Metal Package Contents: 1 × Remote Control Switch Receiver 1 × Remote Control Switch Transmitter Note: The package includes only the items listed above. Other products are not included. Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by ±1–3 cm.