A sound-fitted locomotive has a built-in DCC sound decoder, producing realistic engine sounds, whistles, and horns that sync with movement.

You'll need a DCC controller capable of managing both movement and sound functions. Ensure your system supports sound-enabled locomotives for full functionality.

• HO scale (1:87) is more common worldwide.
• OO scale (1:76) is primarily used in the UK but runs on the same track gauge as HO.

Yes, both use 16.5mm gauge tracks, but OO models are slightly larger in proportion.

Yes, if your model is DCC-ready, you can install a DCC decoder. Non-DCC models may require modifications.