Sony NW-A55/B Walkman NW-A55 Hi-Res 16GB MP3 Player, Grayish Black

Step up your sound with the unimaginable audio constancy of the NW-A55. Hear all your favourite music in genuine Hi-Res audio, by the S-Master HX upscaling. Keep listening for as much as 45 hours on a single cost and broaden your on-the-go music assortment with the SD card slot.

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Precision engineered for improved sound high quality
Truly genuine sound with Hi-Res Audio
S-Master HX digital amplifier for pure sound high quality
DSEE HX upscaling restores high quality to compressed information
In the field: Walkman, USB cable, Startup Guide, Instruction Manual