This is a small, split, double trackball keyboard with an ortholinear layout. It comes pre-assembled with switches and keycaps. The current firmware configuration has the right trackball for cursor movement and the left for scrolling. Specifications: ・Wireless/Bluetooth ・ZMK Firmware ・40 keys ・Low profile ・Gasket mount (PORON foam) ・Choc V2 switch compatible ・18mm trackball ・17mm pitch ・Screwless design ・Bearing trackball case ・PAW3220 sensor x2 The switches used are Kailh DeepSea Silent mini linear switches. The lithium-ion battery is 300mAh. (Handle with care.) Firmware: https://github.com/MeowCatpawkittie/zmk-config-Pyuron/tree/paw3220 #DIYKeyboard