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.
Well, you're in luck, as I happen to own this exact model, which has the same hole.
Taking it apart is quite easy, just 6 screws and some plastic tabs hold it together.
Here's the components on the underside of the board beneath the hole (these components face the rear backplate)
And if I pry the case apart a bit, I can't see any components directly beneath the hole, it's just bare PCB.
As far as I can tell, no microphone is present. The hole is likely a product of the injection molding process for the outer case.
One thing to note about this device though; while the ergonomics are great and its been reliable, I notice that my left hand wrapping around the case can sorta block the mouse pad signal to the dongle (about 6 feet away), so I need to hold it in a way that the transmitter isn't blocked by my hand to move the mouse curser smoothly.
Wonderful day!
Indeed, the manual does not describe it:
- http://www.riitek.com/upload/i4.pdf
It seems more like a hard "reset" button located at the front for unknown reason...
The single teardown I found that exposes the PCB front of this device is the following, but the website has the full sizes of the images locked behind authorization:
- https://www.mydigit.cn/thread-220779-1-1.html
From the first glance at other teardowns found, it seems like the device is relatively easy to disassemble to check it manually. For example:
Disassemble the RII i4 wireless keyboard by removing the six screws from the bottom case.
Be sure to remove the battery before prying apart the top and bottom case as this can damage the battery connector.
Oh! I'd been writing the comment, and once published, 3 more appeared!
Thank you, @ProdigalFrog@slrpnk.net, for the information! Please do consider publishing it at more searchable blog/forum/resource, too!
My penis
Only 3 possibilities I can think of:
A microphone
A speaker
A screw
Beyond a mic it could be that "factory reset" button. Unlikely but possible
Can confirm this is an excellent couch controller.
Might be a reset pin for unlinking bluetooth connection?
Off topic but what's this for?
I've looked through all of the keyboards on Riitek, I don't see any mention of this dot on any page or in any manual, but it consistently shows up on these mini keyboards with a dongle, so my guess is something to do with the wireless connection, but I'm not sure what. Another possibility is a screw hole, since there's only so much real estate on these tiny things, but that seems less likely.
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