This wireless split called Dyad was designed and shared by dyad-keeb, and it comes with a lunchbox style travel case.
I designed Dyad because I couldn't find another keyboard that had exactly what I needed, without all the extra stuff I didn't. Also, let's be honest–if you're here, you either have the same sickness as me, or a morbid (and very niche) sense of curiosity – dyad-keeb.
Features
34 keys (3x5+2)
low-pro Choc switches, soldered
XIAO nRF52840 controller
Battery life is estimated at 9-12 months (850 mAh batteries)
Wireless with dongle, powered by ZMK
3D-printed travel case
Reed switch + magnets for travel convenience
I've noticed that the bottom corners of the keycaps will occasionally snag on things when I put this keyboard in my backpack or in a large coat pocket. […] In response, I made a small and simple travel case to accompany the Dyad. Kinda looks like a sandwich box – dyad-keeb.