Digitrax; Speaker Oval 10mm x 18mm 8 ohm
 
SP10188 Oval 10mm x 18mm 8 Ohm Speaker with wires
 
Oval 10mm x 18mm 8 Ohm Speaker with wires. Fits many N & HO Scale installations.  

Used on current production SDN144A0, SDN144A1 & SDN144PS sound decoders. 
 
Digitrax recommends use of a baffle or speaker surround to maximize sound output.
 
MSRP: $10.00