16GB Walkman® Video MP3 Player

Model # NWZ-X1051  |   change model...
This model is also known as:
NWZX1051, NWZX1051F, NWZX1051FBLK, NWZX1051FBSMP, NWZX1061FBSMP,

Serial Number Location: On the rear of the unit.