If you're looking for a tiny one button MIDI controller, why not one of these:
Disaster Area Designs | MIDI Baby
Link Removed
I feel like maybe you'll have way more functionality & connectivity out of it.
...
In the mean time, I did get my SA Neuro Hub last night. I've had a hard time sort of envisioning it's size, it's been hard to get a feel for it from online pics, so here's a few shots compared to a pedal that most people will be pretty familiar with for size comparison:
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View attachment 3522101
It may fit under my board, at the 'tall' end, but I'm concerned about those buttons being errantly hit. If not I may be able to snuggle it on to the face of my board, if indeed the C4 clears off a few envelopes or whatever.
From any pictures I saw previously I thought it was a plastic housing, and was pleasantly surprised that it's a good solid metal build.