Features: *Very convenient to use, simple wiring diagram connection way. *Suitable for motor forward and reverse, projection screen, electric curtain, electric hanger, garage door, retractable door, etc. *Learning pair code: it can work with any remote control with the same frequency RF 433Mhz, so you needn\'t worry about losing remote control any more. *Output State: Latched: Press buttonUp Triangle, the Motor Forward, Press Button Square is stop. Press Button Down Triangle , the Motor Reverse, Press ButtonSquareis stop *Learning Code: Input AC220V for the receiver, press the receiver learning button, the LED indicator flash, then press the transmitter button, the LED indicator OFF, it means the learning is successfully. When you press the Up Stop Down Button, you will hear the sound of the relay.