Features: new and Elevate your gaming experience with our Mini Keyboard! Customize every key and create personalized commands Experience the durability of a mechanical keypad and the convenience of a USB connection. No driver needed, simply plug and play. Designed for gamers, designers, and video editor, this Macro Gaming Keyboard is a must have tool for boosting efficiency. Whether you're gaming, working on creative projects, or controlling media, our programmable keypad is perfect for various tasks. It's also suitable for industrial control and laboratory use. The knob function can not only rotate and adjust system, but also be used in system that support USB protocol. After setting, the keyboard keys can be stored in the keyboard, even if replacing the computer does not require resetting the keyboard. Specifications: Material:ABS Type:2 Key 1 Knob or 3 Key 1 Knob or 4 Key 1 Knob or 5 Key 1 Knob 2 Key 1 Knob:Approx.8.8cm or 3.46inch 3 Key 1 Knob:Approx.9.8cm or 3.85inch 4 Key 1 Knob:Approx.8.7cm or 3.42inch 5 Key 1 Knob:Approx.10cm or 3.93inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Programmable Keypad Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.