Class 121 Locomotives

V5.0 Diesel Class 121 Digital Sound Decoder with Speaker - 21 pin

V5.0 Diesel Class 121 Digital Sound Decoder with Speaker - 21 pin

V5.0 Diesel Class 121 Digital Sound Decoder including Speaker - Plux 22

V5.0 Diesel Class 121 Digital Sound Decoder including Speaker - Plux 22