Translated Description from PIKO: Novelty 2020 -The new generation 4.1 PIKO SmartDecoders are state-of-the-art and promise even more versatile options for the digital control of model railroad vehicles on mfx-capable control devices, new individual settings in mapping and sound experiences at the highest level are now possible thanks to an increased output power of 2.5 watts. Replaces decoder # 56360