D1565 takes full advantage to the recent upgrades that have benefited the Graham Farish Class 47, namely the technical advancements which see the model boasting a Next18 DCC decoder interface, pre-fitted speaker, cab lighting (when used on DCC) and independent control of the directional lights at each end. The Next18 interface and pre-fitted speaker are put to full use in this SOUND FITTED model, bringing an added dimension to your model railway straight out of the box!