Sounddecoder for steam locomotives (3 cylinders). Suitable for BOTH DC (NMRA/DCC) and AC (Marklin Motorola) digitalsystems. Together with the ESU LokProgrammer (ESU P1) you can add/change the sounds (.WAV files) through your PC. The decoder will recognise the locomotives motortype (DC/AC) automatically. Also suitable for locomotives with Faulhaber-type motors. Speaker with diameter 23 mm and resonance box. With NMRA/DCC plug. 43 x 16 x 8 mm.