ITEM NAME:2Pcs AC 220V RF 433Mhz Wireless Remote Controls Switch 2CH Relay Receiver Module 100% brand new and high quality. Momentary Mode: - Push the remote button, the relay activates, release the remote button the relay deactivates. Toggle Mode: - Push and release the remote button , the relay activates. - Push and release the remote button again and the relay deactivates. Clearing All Stored Transmitters: (Note: After clearing the stored transmitters, all transmitters will need to be relearned by the receiver.) - Push the learning button on the receiver 8 times, and the codes will be cleared . Learning the transmitter: ( Momentary Mode ) Programing a 2 button transmitter as momentary mode transmitter. STEP 1 - Push and release the learning key on the receiver ONCE. - Wait for a moment, the LED will turn off , indicating you entered the learning state. STEP 2 - Push and release the first button on your transmitter, the LED on the receiver board will flash on then off indicating the button was learned. STEP 3 - Press and release the second button, watching the LED go on and off again. - Wait 3 seconds, the LED will turn on again , indicating system is ready for use. Learning the transmitter: ( Toggle Mode ) - Programing a 2 button transmitter as toggle. STEP 1 - Press and release the learning key on the receiver TWICE. - Wait for a moment , the LED will turn off, indicating you entered the learning state. STEP 2 - Press and release the first button on your transmitter, the LED on the receiver board will flash on then turn off. - Indicating the button was learned. STEP 3 - Next press and release the second button, watching the LED go on and off again. - Wait 3 seconds, the LED indicator will turn on again, indicating system is ready for use **Notice** two button transmitters can only be used as toggle or momentary. One mode per 2 button transmitter. (Please note: You let the control panel to learn the remote control, you must press the "A" .Learning the transmitter: ( Toggle Mode ). - Programing a 2 button transmitter as toggle. Toggle Mode - Push and release the first button on your transmitter, the LED on the receiver board will flash on then off indicating the button was learned.