The Corne keyboard is a split keyboard with 3x6/3x5 column staggered keys and 3 thumb keys. Each side comes with a pre-soldered on/off switch, reset switch and pads for a battery connection (direct solder under the controller or a JST female connector) as well as TRRS socket support for wired setups. These are ready to ship, don't wait multiple weeks at other places. This keyboard comes assembled and simply needs switches and keycaps easily added to the hot swap sockets. Wired - Helios Controllers (Socketed) - EZ-Solder Controller Sockets (Soldered) - OLED Displays (Socketed) - TRRS Jacks - TRRS Cable Wireless - Mikoto Controllers (Socketed) - EZ-Solder Controller Sockets (Soldered) - Low Power Memory Displays (Socketed) Because batteries cannot be shipped internationaly we cannot include them in this kit Precompiled firmware can be found here.