- The sound of the 381 series, "the last regular train of the JNR express train," is reproduced in a model train, allowing you to enjoy a realistic driving experience.
- By pressing the function button, you can play two types of railway songs that revive the riding experience and two types of in-car melodies for the "Yakumo"
- The characteristics of the 381 series express DC train are realistically reproduced, such as the rolling sound with a sense of speed that resonates in the quiet interior of the car and the motor sound with a clearer tone compared to other JNR types
- In addition to the horn + whistle (AW-5 + AW-2) that has been available since the new model, you can select the horn only sound heard on some JR West vehicles
- The sound-synchronized type card allows you to enjoy the feeling of driving a real train by accelerating/decelerating in accordance with the running sound.
- When the sound box is turned off, it is equipped with a "save tuning setting" function that remembers the previous tuning mode and maintains the setting the next time it is started
- A "function label" compatible with the sound box is included in the package
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