This remote control is a finished goods product. Serving as infrared transmitter, has the frequency around 40 KHz for circuit Infrared sensor. TSOP4838 (MB704) require controller for decoding the command. And remote controller MB704 also can compatible or replacement circuits electronic as follows:
FK-FA440 Single Channel Infrared Remote Control
FK-FA441 Single Channel Infrared Remote Controlled Receiver
FK-FA442 Five Channel Infrared Remote Control
FK-FA443 Five Channel Infrared Remote Controlled Receiver
TECHNICAL DATA