Authentic - Refurbished - Replacement Part - NOT A COMPLETE SET - You will receive a single "LEFT SIDE"  replacement item.  One original silicon ear tip will be included. Thoroughly tested and guaranteed to operate as intended by the manufacturer.  NO RETURNS.

Initialize the headset to restore factory settings.   Instructions may be found here:  https://helpguide.sony.net/mdr/wfc500/v1/en/contents/TP1000449912.html

Instructional video:   https://www.youtube.com/watch?v=8FdwFpGq2as