Feature: 1. DIY Programmable: All keys are programmable. All key functions of the standard for keyboard can be set, and a complex combination of shortcut keys can be realized with one key. 2. Small and Portable: Small and portable, you can carry it with you, effectively saving desktop space. 3. 2 Knobs: It can be rotated to adjust and can also be used as a button. The knob can be set to zoom in, pause, play and other functions. 4. USB Cable: Comes with a detachable USB cable. You can connect a keypad (plug and play) and another keyboard at the same time on the same computer and they won't interfere with each other. 5. Wide Applications: Suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields. Specification: Item Type: Mechanical Gaming Keypad Material: Acrylic Key Type: 12 Key Mechanical Keyboard, 2 x Knob (the Knob Can Be Used As a Key to Press) Applicable Equipment: Computer Universal Package List: 1 x Mechanical Gaming Keypad 1 x Data Line How to use: Plug and Play