Features: 1.2 Keys 1 Knob Design: The unique 2 keys 1 knob design of this keyboard allows users to customize and perform more complex operations, providing greater operational free. Easily adjust volume, screen brightness or other related settings through the knob, while the knob also acts as a key to be pressed as another customized key to enhance the user experience. 2.Customizable Macro Programming: The keyboard supports customizable macro programming, which allows users to bind frequently used operations or specific commands to keys to perform multi step operations with a single key, improving work or gaming efficiency. 3.Hot Swappable Design: The keyboard features hot swappable technology, enabling users to change keycaps or axes at any time to personalize the keyboard. No need to worry about the adaptability of the keyboard for different games or usage needs, simply disassemble the axle body and replace it with a suitable mechanical axle body to quickly adapt to various scenarios. 4.Blue Switch Mechanical Keyboard: The keyboard features a blue switch mechanical keyboard with pronounced touch, fast feedback and durability. The blue switch mechanical keyboard excels at clicking and quick combo operations in games, providing stronger competitive gaming performance. 5.Key and Cable Separation Design: The keyboard adopts the key and cable separation design, which allows users to arrange the keyboard wiring more flexibly according to their own usage habits, reducing the cable bunching and better organizing the desktop. specification:Item Type: Macro Programming Keyboard Material: Acrylic Number of Keys: 2 Keys and 1 Knob (Knob Can Be Pressed as a Button) Connection: Wired Connection (Key Cable Separated) Cable Length: Approx. 1m/3.3ft PackageList: 1 x Keyboard 1 x Data Cable 1 x Driver USB Flash Drive 1 x Manual NoteManual measurement please allow some error.