NOTE: You can request instructions after purchase. Function introduction: The keyboard cannot be programmed for every function, so please read the details 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 a single key simulates a sequence of multiple keystrokes with customizable timing. Each macro can support up to 34 key commands with adjustable intervals. For example, one-click login or password entry. Multimedia functions such as volume control, play/pause, next/previous track can be assigned. The left, middle, and right mouse button functions can also be programmed, effectively replacing basic mouse operations. Features: - HID plug-and-play, no driver required. Compatible with Windows 7 and above, Linux, and macOS. - Built-in memory retains settings, so reconfiguration is not needed when switching computers. - Works when connected to different systems without additional setup. Multiple keyboards can be connected and used simultaneously. - Simple software interface for easy customization; requires a Windows system for initial setup. - Operates like a standard keyboard in most environments and supports some BIOS functions. - Supports multiple language layouts. - Supports up to 6-key simultaneous presses without ghosting. - Compact bar-style design with non-slip strips included. Anti-slip pads can be attached to both ends for added stability. - Detachable keycap and cable design for easy disassembly, 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 stand behind the quality of our product. Please review the product dimensions and specifications in the title and description to ensure compatibility with your needs. We aim for your complete satisfaction. If you have any questions, feel free to for assistance. Enjoy your experience with our product!