kiddIt's an in-line mic on the cable. You get one standard cable with 1/8 and 1/4 inch jack adapter, and the plus addition includes an extra cable with 1/8 inch mobile jack with inline mic. Definitely works on Android devices, haven't tried with iPhone. Fantastic headphones regardless.
If you need a proper mic for something like PC gaming, get the massdrop minimic or something!
If you need a proper mic for something like PC gaming, get the massdrop minimic or something!