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8GB Digital Music Player

Model # NWZ-S638F  |   change model...
This model is also known as: NWZS638F, NWZS638F/BMMX3, NWZS638FBLKWM, NWZS638FBLK\WM, NWZS638FREDWM, NWZS638FRED\WM,

Serial Number Location: On the rear of the unit.