Question about DS4

[Trunkin]

Sweep said:

Trunkin said:

My first guess would be a charging port.
My second would be a microphone port--which is actually more likely, given the positioning.

EDIT: Just took a look at my PSP's mic port. There is a resemblance.  

Not a charging port, this one is located below the light bar in front of the controler

I see. Yup, it has to be for a microphone, then.