System : Stand-alone ProMiniAir(TM) Transmitter (PMA Tx) integrated with a WiFi-equipped EX-CommandStation (PMA Tx/WCS): nothing else is needed to transmit! Just put it down in a convenient/central location, plug in the USB cable+USB converter we provide into "wall" power, and use your smartphone throttle app (multiple smartphones are OK) to connect to your dead-rail locomotives!
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