LokSound 5 Micro Sound and DCC Control Decoder by ESU is a great choice for N, TT and small HO Scale locomotive models. LokSound 5 is a true multi-protocol decoder. It supports DCC as well as Motorola, Selectrix and M4 systems. It offers a choice of 14 through to 128 speed steps, two and four-digit addresses in DCC format and up to 32 functions. On RailComPlus(R) systems the decoders register themselves automatically on command stations equipped with the feature. Its compact dimensions of only 13/16 x 3/8" 21 x 10mm make it great for use in N Scale locomotives. It is equipped with a dual speaker output and is supplied with an 7/16 x 19/32" 11 x 15mm sugar cube speaker and enclosure. This decoder si dual-mode and can operate on standard DC railroads with limited sound functions. This decoder supports all DCC programming modes and thanks to RailCom you may read out the CV values on the main, provided you have a command station supporting RailCom. There are utility registers for command stations that only facilitate programming of CVs ranging from 1 to 255.