That's a Divoom Pixoo Max display. It connects via bluetooth to my phone to create and update images. It can be a little fiddly, but is super fun.
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> Are the Play and Tracker the same size? Does the Tracker carry case also fit the Play?
Yes and yes. I picked up this case on Amazon since it has room for cables, where as the official case only has room for the Play (or at least that is the case for the Tracker). Only downside is the power brick is too thick to fit in this case but I have a compact battery coming that I intend to velcro to the Play.
wow, awesome work! if you used a right angle usb c and right angle 3.5 adapters the top area could be much smaller:
https://www.amazon.ca/UGREEN-Charging-Braided-Compatible-Nintendo/dp/B07VJNQT6F/
https://www.amazon.ca/Seadream-3-Pole-Female-Headset-Extension/dp/B01DCBJ51I/