Bud style headphone.

Model # MDR-EX32LP  |   change model...
This model is also known as:
MDREX32LP, MDREX32LP/BLK, MDREX32LP/BLU, MDREX32LP/PNK, MDREX32LP/WHI, MDREX32LPBLK, MDREX32LPBLU, MDREX32LPPNK, MDREX32LPWHI,

Serial Number Location: No Serial number on headphones.