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This manual provides step‑by‑step instructions for using the Sampo MK‑631C, MK‑641C and MK‑651C MP3 Walkman. It explains basic operations such as powering on, battery installation, and navigating the LCD menu, as well as detailed functions like music playback, recording, A‑B repeat, and language learning mode.
The guide also covers USB connection procedures, driver installation, firmware upgrade, and safety precautions. A troubleshooting section answers common questions about file compatibility, storage capacity, and performance issues, while the specifications page lists supported formats, storage options, and environmental limits. This manual is written in Chinese.