NOTE: You can request instructions after purchase Function introduction: The keyboard cannot be set up for every possible function, so thank you for reading carefully. Any key on a standard Windows keyboard can be customized and fully replaced. One-key shortcut functions can be set, allowing a single press to replace multiple keystrokes, improving efficiency and accessibility. One-key macro operations can be programmed, where pressing one key simulates a sequence of multiple keystrokes with customizable timing (up to 34 bits per macro). Example uses include one-click text entry or command execution. Multimedia controls such as volume up/down, track navigation, play/pause can be assigned. Mouse button functions (left, middle, right) can also be configured, effectively replacing basic mouse operations. Features: - HID driver-free design; works plug-and-play on Windows 7 and later, Linux, and macOS - Built-in memory retains settings; no need to reconfigure when switching computers - Settings apply across multiple devices; supports connection to multiple keyboards simultaneously - Simple software interface; setup requires only a Windows system - Functions similarly to a standard keyboard, suitable for most applications and compatible with some BIOS environments - Supports multiple language layouts - Non-conflicting multi-key input; supports up to 6 simultaneous keypresses with full response - Slim bar-style design with anti-slip strips included; attach to both ends for added stability - Detachable cable allows easy disconnection for portability and convenient office use Specifications: - Product color: Black - Data cable length: 1 meter - Shaft type: Green switch - Compatible systems: Windows, macOS, Linux Package includes: 1 x Keyboard 1 x Data cable Thank you for your interest. We guarantee the quality of our product. When shopping, please review the product dimensions and specifications to ensure compatibility with your needs. Detailed information is provided in the title and description. We want you to be completely satisfied with your purchase. If you have any questions or concerns, please feel free to . We are here to help. Thank you for choosing our product. Have a great day!