First time i notice them in this video, on the non USB type C side is something that looks very much like a headphone port ... and then 2 smaller holes that remind me of the sim card tray thingies on the phones ... that side is rarely on official photos, the only i could find was a darker than usual space grey model, where it is very hard to see them ... what are they? Headphone jack dropped last minute? airholes?
Dual microphones, just like current MacBook Pros/Airs