I want to get an extension cable for it but all I found are TRS (3-pin) cables. I want the mic working so I need an extra pin, hence TRRS.
Exhibit A. Difference between TRS (normal) and TRRS (4pin y'all).

Exhibit B. The kind of cable I need. Slightly longer, of course but a short one will do actually.

Do you know where I can such a cable? Or at least components so I can make my own?
I found a cable on the internet but it's 4x more expensive, it will ship from the US/Europe and shipping alone will cost more than the actual earphones, factoring in the labor I put in to replace the drivers.
Will Sim Lim tower do? Adelphi?
TIA.