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

Make sure this fits by entering your model number Precision engineered for improved sound quality Truly authentic sound with Hi Res Audio S Master HX digital amplifier for pure sound quality DSEE HX upscaling restores quality to compressed files In the box Walkman USB cable Startup Guide Instruction Manual.