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FiiO X3 (Black) High Resolution Music Player (3rd Generation) : Electronics

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Portable media player - Wikipedia

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Now practically obsolete, what portable music player was introduced in 2001 with the slogan '1,000 songs in your pocket'? - Quora

The FiiO X3 2nd gen (ex X3K, X3II) Thread : 192K/24B, CS4398,Native DSD, USB DAC with LO and inline remote, Page 665