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 the sound decoder # 46199
