Thank you for viewing! This is a listing for the MDR-NC31 noise-canceling earphones for Walkman. The ear tips have been replaced with new ones. I have a new pair of the same model earphones, and this one is in good condition, with almost no difference in sound quality when compared. The cap for closing the Walkman's charging port is also included. It can be used with Walkmans that support 3.5mm 5-pole mini plugs, and also with smartphones like Xperia that have noise-canceling functionality. I am currently storing it carefully until a buyer is found. Thank you for your consideration.