To capture the highest quality audio, Tiki uses front-and-back facing microphone capsules that actively locate your orientation to the mic for use with multiple speakers or as you move around the room.
During the Japanese-only broadcast, the Nintendo CEO also revealed that a standalone microphone accessory is also on its way (the GamePad already packs a built-in mic), with the new peripheral pitched at karaoke fans in its homeland and its new Karaoke service.