4.4mm 5 Poles Male Full Balanced Headphone Plug 19.5mm for Sony NW-WM1Z NW-WM1A AMP Player 

100% Brand New and High Quality.

Type：4.4MM 5Pole Headphone Plug Adapter

Diameter of Tail Hole: 6mm

Plug Diameter: 4.4mm

Suit For: Sony NW-WM1Z NW-WM1A Player