Features: 1.THREE MODES: Mechanical keyboard support wireless 2.4G, Bluetooth 5.0, Type C wired three modes, easy to switch to use. 2.HOT SWAPPABLE: Double layer thickened PCB panel brings longer plugging life, hot swappable, supports standard height five pin switch and three pin switch. 3.DIY PRODUCTION: DIY Mechanical Keyboard Kit can be freely matched with any switch and keycap, DIY your favorite keyboard. 4.BOTTOM SILENCING COTTON: ABS shell, strong hardness, sound insulation silicone, bottom silencing cotton, use more quiet. 5.COMPATIBLE SYSTEMS: Keyboard compatible for Window, for Android, for IOS, for OS X and other systems, suitable for all environments, home and office use. specification:Item Type: 67 Keys DIY Mechanical Keyboard Kit Material: ABS Battery Type: Built in 3000mAh Lithium Ion Battery (Included) Key: 67 keys (65% with Column) Structure: Gasket Structure Connection: Support 2.4G/Bluetooth 5.0 Connection/USB C Keyline Separation System Support: For Windows, for Android, for IOS, for OS X, etc. PackageList:1 x MechanicalKeyboardKit (Ship with Inbuilt Battery) 1 x 2.4G Adapter 1 x Power Supply Cable 1 x Switch Key Puller 1 x User Manual Note1. When installing the switch, please check if the pins of the switch are bent 2. When installing, you need to insert the hot swappable switch holder vertically 3. Keyboard keycap layout for 65% layout, please select keycaps that support 65% layout when choosing keycaps 4. Not with switch and keycaps