Learning: Press learning button, the indicator flashes and OFF, loosen finger, press any button of the remote transmitter, indicator flashes three times, meaning learning succeeds.(how many times press the learning button according to the working way you need)Clearning: Hold press learning button about 8 seconds,indicator light flashes several times and off, then press remote ,Relay not Respond ,it means clearning code successful. About Receiver: Model No: -C211008 Quiescent condition: Less than 6mA Working temperature: -40 - + 80 Receiver sensitivity: more than -105dBm Working frequency: 433mhz Output voltage: Contact output and Voltage output Max load current: 10A About Working way: Working way changed by Learning button Momentary: Press the Learning Button 1 times. Relay: Press and hold On; Release Off Toggle: Press the Learning Button 2 times. Relay: Press On; Press same button again Off Latched: Press the Learning Button 3 times. Relay: Press On; Press other button Off. 2 channel Momentary + 2channel Latched: Press the Learning Button 4 times. 2 channel Momentary + 2channel Toggle: Press the Learning Button 5 times. 2 channel Toggle + 2channel Latched: Press the Learning Button 6 times. Working voltage:AC100-240V Colour:White Material:Plastic Package Contents: 1 * Remote Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.