["Reference Title: AC 220V 1CH RF 433MHz Wireless Remote Control Switch Learning Code 1 Relay Lamp Light Controller \r\n\r\n\r\nDescription:\r\nAbout Working mode:\r\nMomentary: Push the remote button, the relay connects, release the remote button, the relay dis-connects.\r\nToggle: Push once the remote button, the relay connects, push twice the remote button, the relay dis-connects. \r\nLatching: Push the remote button A, the relay connects, push the remote button B, the relay dis-connect.\r\n \r\nClearing the code:\r\nPush the learning button on the receivers for 8 times, the codes will be cleaned.\r\nAfter clearning the code, all the remote control cannot work any more.\r\nLearning the code: (Momentary)\r\nPress the learning for key(on the Receiver) once for time, the LED (on the Receiver)will blink one for time. When the LED is on, press the button of the remote control(You want to let it learn), the LED (on the Receiver)will blink for 3 times and then turn off, learning to succeed.\r\nLearning the code: (Toggle)\r\nPress the learning for key(on the Receiver) 2 times, the LED (on the Receiver) will blink 2 times. \r\nWhen the LED is on, press the button of the remote control(You want to let it learn), the LED (on the Receiver)will blink for 3 times and then turn off, learning to succeed.\r\nLearning the code: (Latching)\r\nNote: When you choose for latching mode, in order to learn more remote control, you need to learn two different button, the first for time learnt is for \"ON\", the second for time learnt for \"OFF\".\r\nFor example: button A = ON , button B = OFF\r\nPress the learning for key(on the Receiver) 3 times, the LED (on the Receiver) will blink 3 times. \r\nWhen the LED is on, press the button of the remote control(You want to let it learn). Push the remote button A, LED flash for 3 times. Push the remote button B, Led flash for 3 times. \r\nAfter 3 seconds, the LED indicator will be off, learning to succeed.\r\nA = ON , B = OFF.\r\nPlease NOTE: The system can store for 25 pcs of remotes, if the remote get more than 25 pcs, the initial remote control will be lost.\r\n\r\nSpecifications:\r\nModel: KR2201-4\r\nInput Power: AC 85V - 250V\r\nStandby Current: 97dbm\r\nTransmitting distance:100m (open space)\r\nDecoding mode: MCU software decoding\r\nRemote storage: 25pcs\r\nSupport remote type: Learning code 1527Code\r\nWorking mode: Momentary, Toggle, Latching \r\nOutput Terminal: NO, NC, COM\r\nPCB dimension: 53.8×31.2mm/2.12×1.23in (Approx.)\r\nQuantity: 1 Set (other accessories demo in the picture is not included)\r\n\r\nNote: \r\n1.Transition: 1cm=10mm=0.39inch\r\n2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\r\n3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes:\r\n1 X Receiver Module (KR2201-4) (include for Shell) (No retail package)\r\n1 X Remote Control (include battery)"]