Sugar cube speaker 11 x 11 x 3.5mm. 8ohm 1 watt speaker. Ideal for HO and O scale locos and wagons. 1 Per Pack.

Works with ESU, Zimo and most other sound decoders.

As this is a 1 watt speaker and a lot of new decoder have amplifiers that are greater then 1 watt output I recommend that you do run the speaker at full volume. Around 75% is suffice.

Does not include sound box.