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Train Tech SFX+ Sound Capsule – Steam Express Locomotive (manufacturer part number TTSFX10) is a compact, self‑contained sound module designed for model railway locomotives, tenders, wagons or coaches. The unit incorporates a built‑in speaker, battery and a microchip with real recorded train sounds, together with a motion sensor that activates the appropriate sound effects and switches the power on and off automatically.
The capsule requires no wiring, pickups or external switches and is compatible with both DC and DCC layouts. Its dimensions are 25 mm long, 20 mm wide and 12 mm high, making it smaller than a 50 p coin. The battery is powered by the motion sensor, extending operating life by switching off when the train is stationary.
Key specifications: item number SFX10; measurements 25 mm × 20 mm × 12 mm; fully self‑contained with built‑in speaker and battery; real recorded railway sounds; easy installation in seconds.