Note:only have 433mhz Remote control (transmitter) Operating Voltage:2pcs AA 1.5V Operating Frequency: 433MHz Frequency Distance:20M-200M (please notice that is the ideal distance without any block and signal interfere , it would rise and fall about 10%-50% with the block and signal interference ). Specifications: Control Lights, TVs, Motors, Fans, Cameras, Video signals, Audio signals, electrically operated Doors/ Locks/ Windows. 1.Working Voltage: DC 12V-48V 2.Working Frequency:315MHz/433MHZ 3.Receiving sensitivity: -105dBM 4.Max Load: 10A Relay ( have better load less than 5A) 5.PCB Size:75*58*15mm Case Size :95*62*29mm 6.Function: Limit & Wire External Button 7.Original State OFF, (Suddenly, the electricity was cut off, then comes again, the State still is OFF, you need manual turn it ON) 8.Out State: Momentary Latched Adjusted by the Jumper on the Receiver, ( we ship default as Latched, if you need use Momentary to change the Jumper on the Receiver ,) 9.Working way changed by jumper on pins Momentary: jumper doesn't connect any two pins. Relay: Press and hold -> On;Release -> Off. Toggle: jumper connects the pin T and pin S. Relay: Press -> On;Press same button again -> Off Latched: jumper connects the pin L and pin S. Relay: Press -> On;Press other button -> Off. 12.When the relay is activated, the buzzer synchronize with a beep prompt. 13.When the receiver output state is Latched, we have set it 0.5s time delay for forwards and reverse, it is the Protection function. 14.We have made transmitter and receiver working together and test it before ship it,when you get it don't need to do anything ,just install it. 15.Learning Code : (1) Press the learning button for 1 time,the learning indicator flashes slowly,Then press the transmitter button up (first button default for forward) ,the learning indicator flash 5 times and OFF,It mean the first button learning Successfully (2) Press the learning button for 2 times,the learning indicator flashes slowly,Then press the transmitter button down (second button default for forward) ,the learning indicator flash 5 times and OFF,It mean the second button learning Successfully (Third button default for stop ,When the jumper set for Latched) 16.Clear code : Press the learning button on the receiver for 5s,the learning indicator will flash 3 times and OFF , It mean all the transmitter code in the receiver have been cleared. pacote inclued: A: 1 x Receiver(with cover) 1x Transmitter (AA1.5V battery not included ) B: 1x Receiver(with cover) 2x Transmitter (AA1.5V battery not included )