【roba Deluxe Set】 This set offers a high degree of freedom and can be customized if it doesn't fit your hand. It has been used only a few times, and the contact surfaces have non-slip pads, so there are no noticeable scratches. The layering is also fine. Equivalent to 72,000 yen. Wireless Bluetooth connection, Self-made keyboard with trackball function, roBa low-profile version. Contents: ・Assembled and soldered main unit ・25mm high-quality (smooth type) bearing trackball case ・25mm trackball "Hand-dyed Black" ・34mm high-quality (smooth type) bearing trackball case ・34mm Perixx trackball ・Low-profile key switches "Silent" ・Low-profile keycaps "Jezail Funder LAK Black" set (stored in the box, not attached to the main unit) ・CKW12 horizontal rotary encoder ・EVQGWD001 encoder (discontinued) Microcontroller with technical conformity mark, battery lasts for about a month. Designer and License Information: roBa is designed by kuma_key. ※GPL-3.0 ※Please be careful when handling lithium batteries. https://www.baj.or.jp/battery/safety/safety16.html ZMK firmware pre-installed, keymap can be changed with ZMK Studio and Keymap Editor, operation will be confirmed before shipping.