This device is basically just a motherboard for the Arduino Pro Mini (16mhz) and the CC1101 Modem Board. It is offered as an easy to build kit. You may purchase just the circuit board or a complete kit with both the ProMini and the CC1101 included. One component, the 3.3v voltage regulator is a surface mount device but is easily soldered with the help of an alligator clip. Instructions will be forthcoming. Note that this device, if used as a receiver, will need the DCC amplifier to drive a DCC decoder.