What is this thing?

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What is this hole for at the bottom of this keyboard/mouse combo? (sh.itjust.works)

submitted 1 day ago by Whostosay@sh.itjust.works to c/whatisthisthing@lemmy.world

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It's a Rii Mini Keyboard i4, and my concern is that it's a microphone. I just noticed the hole and think I'm probably wrong in what it is considering how big a deal it would be if it was a mic that isn't advertised.

What could this hole be for or what is it? Thanks in advance, hope this doesn't violate any rules.

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[–] ch00f@lemmy.world 1 points 22 hours ago

Good to know! I'm an electrical engineer, and $40k was always the generic number we got tossed from the MEs. Not sure if it was for domestic or multi-part molds.

For reference, I'd wager single quantities PCB prototypes at around $100 each and maybe $5 at scale.