21 pin Loksound 5 sound decoders to suit the Bachmann S stock. You can fit a large speaker inside or something very small under the floor with the decoder.
Supplied with our recommended sound from one of our providers or you can select 'other' from the drop down menu if you would like the sound of a specific provider. You can add a note on the checkout page to let us know who's sound to use.
Choose either the standard sugarcube speaker kit or a FREE speaker upgrade from the list. The 30x17x4mm speaker fits in the compartment with the decoder (between the decoder and pcb)