A split 40% split 4x12 ortholinear keyboard made and sold by Keebio. It's essentially a Let's Split with LED backlight support and 2u thumb key support. [More info at Keebio](https://keeb.io).
You'll need to add `BOOTLOADER = atmel-dfu` to your `rules.mk` to ensure that resetting the board works properly.
Hold the reset button on the Elite-C board, or the reset button on the keyboard if already assembled, then release the button and run:
make levinson/rev2:default:dfu
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).