Heljan 21 pin DCC ready models do not have solder pads for a speaker on the circuit board, instead they have a socket marked CN6 where you can plug a speaker in, this plug can be connected to the socket so that you can then fit your chosen speaker.
⚠️DUE TO THE POPULARITY OF THE SALE, THERE WILL BHE A SMALL DELAY SENDING ORDERS, ALLOW AROUND 5 DAYS FOR DELIVERY OF SOUND DECODERS⚠️