Gently nestled between MacBook's edge and the keyboard are two speaker grilles—carefully crafted vents that channel sound waves out of the MacBook Pro straight to ... Wait.

The speakers are not located under the speaker grilles. The speaker grille doesn't even go clear through the case.

These speakers likely blast their impressive sound through the side air vents.

The "grilles" are seemingly cosmetic, maybe to unify the product line. Curiously, the Function Key edition also suffers from some fake holes, albeit different ones.

Teardown Update: Alright, most of these holes are cosmetic, but after yanking out the tweeters in the following step, it's clear that some of these are through-holes that carry sound out of the Mac's enclosure.