Description:When the controller is powered on, press and hold the learning button for 3 seconds, and the indicator will flash. Release your hand, press the remote control button, and the indicator light will flash 3 times, indicating that the password interlocking mode is successful: start the machine, press and hold the learning button for 5 seconds, and the indicator light will flash 2 times. Release your hand, press the power button on the remote control, and the indicator light will flash three times at a time. Press the remote control button again, and the indicator light will flash two times, indicating that the password pairing is successful. Clear pairing code: after the controller is powered on, press and hold the learning button for 8 seconds, and the indicator will flash continuously for 4 times. Indicates that the code is cleared successfully. Manual switch. The learning button on the controller can control the opening and closing of the output. Press it to open, and then press it to close.Scope of application: DC water pump, motor, lamp, battery car, etc Product color: black,white(optional) Product size 54 * 84 * 28mm Note: 1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding 2. The color may vary depending on the display. Please understand Note: Hello, please pay attention to your shipping address when purchasing products. If your receiving information (such as name, street, house number, doorbell\/email without name) is incorrect, the order will not be delivered correctly.) Package includes: 1 * switch