HID standard keyboard, plug and play without driver. This keyboard supports multiple function modes. Each button can be set to a different function mode without affecting each other. The button function can be customized using a dedicated configuration program, and settings can be saved and reused. On-board storage saves configurations directly to the keyboard, so settings are retained when connecting to different devices. Compatible with Windows, Linux, macOS, Android, and Raspberry Pi. Supported function modes: Default mode: standard keyboard operation. Mouse mode: move cursor and click mouse buttons. Multimedia control: control media playback functions. Two-step operation: perform separate actions on press and release. LED control: set keyboard LED to a specific state. Game controller: configure keys as game controller buttons. One-key password: assign a preset password to a single key. Package includes: 1 keyboard