1、[DIY Keycap Switch] 81 keys mechanical keyboard kit, 75% of the layout, switch hot swappable shaft holder, can be arbitrarily with any shaft and keycap, DIY your favorite keyboard. 2、[Hot Swappable] Switch hot swappable shaft holder, combined with double thickened PCB panel, bring longer plugging life. Support standard height five pin shaft and three pin shaft. 3、[High Configuration] Mechanical keyboard with CNC aluminum housing, high hardness, metal positioning plate, interlayer sound insulation silicone, bottom silencing cotton, etc. 4、[Three Mode Connection] Support for QMK and for VIA open source system to change the key (according to the manual operation), support 2.4G, Bluetooth 5.0 connection, USB C key line separation connection. 5、[Wide Compatibility] This hot swappable keyboard supports for Windows, for IOS, for Android operating systems. Designed with RGB lights, multiple light effects to enhance your experience. Item Type: DIY Hot Swappable Keyboard Material: Aluminum Alloy Model: LMK81 Color: White Processing Technology: Sub Surface Slip Layer Process Shell Process: CNC Machining Surface Process: Powder Coating Battery Capacity: Built in 3000mAh Lithium Ion Battery (Included) Key: 81 Keys (75% Assortment) Structure: Gasket Structure Connection: Support 2.4G, BT 5.0 Connection, USB C Key Line Separation Support VIA: Yes System Support: For Windows, for IOS, for Android 1 x DIY Hot Swappable Keyboard Kit 1 x 2.4G Adapter 1 x Power Supply Cable 2 x Sponge Pad 4 x Satellite Shaft (Three Short and One Long) 8 x Screw 1 x Hex Screwdriver 1 x Shaft Puller Key Puller 1 x Bottom Silencing Foam 1 x Instruction Manual