Scheda TF disco a U formato MP3 scheda decodificatore modulo amplificatore decodifica lettore audio

"P/P/Mode" key: "short press" for "play/pause" switch, "long press" for U-disk, TF card "mode". P/P/Mode" key: "Short press" for "Play/Pause" switch, "Long press" for U-disk, TF card "Mode" selection.

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