DC 12V 1CH Learning Code Wireless Remote Control Switch System teleswitch 1*Receiver and 3*Transmitter Applicance Garage Door Operating Voltage: DC12V Operating Current: 6Ma Operating Frequency: 315,433 MHz Operating Temperature: -40C ~ +80C Receiver Sensitivity: -105dBm Output Voltage: AC / DC (optional) Output Current: 10A Code :Learning code .(jog/Non-Latched .inter-lock/Latched .self-lock /Self Latched ) Size: 35MM*32MM*17MM Output working way: Jog/Non-Latched: press one button is working /ON. loosen your finger on the same button is stop/OFF .one channel switch need one buttons remote control Self -lock/Self-Latched: press one button for one time is working/ON .press the same button again is stop/OFF .(one channel switch need one buttons remote control Inter-lock /Latched : press one button is working/ON ,press another button is stop/OFF . ( one channel switchneed 2 buttons remote control) Learning Method: Press the learning button3 seconds, the indicator light off .then you press any buttons of the remote control to transmite signal . it means studying successfully when the indicator flash 3 times until the indicator light on. Remove code : press the learning button about 8 seconds , the indicator turn on to off to on , it means the information that you keep have been removed successfully . Package Include: 4 x Receiver(with cover) 2 x Transmitter(with battery)