HO Diesel ALCO244 Sound-Only Decoder w/ Speaker

HO Diesel ALCO539T Sound-Only Decoder w/Speaker

HO 16-Bit Diesel Sound-Only Decoder with embedded Speaker

HO Diesel EMD645E Sound-Only Decoder w/ Speaker

HO Diesel EMD710 Sound-Only Decoder w/ Speaker

HO DCC Diesel Sound Decoder with Built-in speaker

HO DCC Drop In Diesel sound decoder with Built-in baffled speaker

MRC 1913 HO Six Prime Mover Diesel DC/DCC Sound Decoder Card New (MR040626-11)