Description: 【Separation of Keys and Wires, Portable Operation】: Game keypad, design of separation of keys and wires, convenient for storage. 【Hot Swappable Design】: USB Mini 12 Key Keypad, hot swappable shaft seat, compatible with most shafts on the market, DIY self changing shaft, portable operation. 【3 Adjustment Knobs】: Programmable macro keyboard is 3 knobs design, the knob click function can be used as a mouse left and right button. The knobs can be set to in and out, with functions such as cut songs, volume adjustment, pause, and play. 【Size】: Programming macro pad keypad, 127*87*29mm. Small and portable, easy to store. 【Material】: Single handed keyboard is made of standard material, which is durable. One handed programmable mechanical keyboard can make your work faster and more efficient. Specification: Line length: about 1.8m Hot swap: support Macro programming: support Shaft: mechanical shaft Number of keys: 12 Lighting: 12 types Size Chart: 127*87*29mm/5*3.43*1.14inch Package Includes: 1x keyboard 1x cable Note: Please allow slightly errors due to manual measurement and different monitors.