This relay has 3 modes to pair: 1. Inching mode/Momentary mode Press the learning code 1 time .the indicator flash ,loosen your finger ,press any button of the remote control the indicator flash 3 times and off .it mean you learn it successfully .2. Self-locking/Toggle mode Press the learning code 2 time .the indicator flash ,loosen your finger ,press any button of the remote control the indicator flash 3 times and off .it mean you learn it successfully .3. Latched mode Press the learning code 3 time .the indicator flash ,loosen your finger ,press the first button of the remote control(Set for on) the indicator flash 3 times and off, then press then second button(Set for on) .the indicator flash 3 times and off, it mean you learn it successfully .Reset/Remove/clear code : Press the learning button for 8 times , the indicator blinking, it means the remote code that you keep have been removed successfully .It can learn 2272 2262 or 1527 chip with the different code wireless 433MHz remote controlSpecification: Input Voltage: DC10-14V (DO NOT CONNECT MORE THAN 14V) Standby Current: ＜5MA RF Frequency: 433MHZ Receiver Sensitivity: >90dBm Remote Control Distance: <50 meter(In open environment) Decoding Way: MCU Software decoding Can store the number of remote control:50 Support remote control type: Fixed code, learning code Channel: 1CH Multiple working modes:Inching/Self-locking/Latched Wiring Method:Fixed wiring terminal Working Voltage: DC12V Relay rated load:10A 250VAC, 10A125VAC, 10A 30VDC, 10A 28VDC Normally open(NO),Common(COM),Normally closed(NC)Package: 1 x 12V 1 Channel Wireless Relay Switch with casing(Remote controller not included, can check add on deal)