The overall functionality has been confirmed. This is a wireless, split, double-trackball keyboard. It is also possible to change one side to a trackpad. (Example: Left trackpad, right trackball) The trackball case is removable and uses three bearings. In the current firmware settings, the right trackball controls cursor movement, and the left controls scrolling. There is a Type-C connector and a reset switch on the top of the main unit. There is a power switch on the top of the thumb keys. Specifications: ・XIAO nRF52840 Plus ・Wireless/Bluetooth ・ZMK Firmware ・40 keys ・Low profile ・Column staggered ・Choc V2 switch compatible ・18mm trackball ・17mm pitch ・Ultra-low power PAW3320 sensor x2 The switches used are Logicool GL Brown tactile switches. The specifications are almost the same as Choc V1. Please consider these switches and keycaps as extras. The case and keycaps are made of Bambu Lab PLA Matte. The lithium-ion battery is 180mAh. (Handle with care.) Firmware: https://github.com/MeowCatpawkittie/zmk-config-Noctus Connection type... Wired/Wireless (Bluetooth) Key switch... Mechanical Keyboard layout... English