The BIGTREETECH HBB (Hot-Key Button Board) is a compact and versatile Klipper macro keyboard that adds physical shortcut buttons to your 3D printer. Featuring 7 programmable mechanical keys with vibrant RGB lighting, it allows instant access to common commands like homing, emergency stop, pause, resume, filament change, and custom macros — all at the push of a button. Key Features: 7 RGB-Lit Mechanical Buttons — Tactile feedback with customizable RGB colors for clear visual status and stylish look. Programmable Macros — Fully customizable through Klipper configuration and open-source GitHub firmware. USB Communication — Simple plug-and-play connection to your Klipper host (Raspberry Pi / BTT Pi / CB1) or control board. Seamless Integration — Works perfectly with KNOMI series displays and most Klipper setups. Compact & DIY-Friendly — Small footprint for easy mounting on printer skirts, enclosures, or custom panels. Strong Compatibility — Supports Voron, Ender 3 series, RatRig, and other Klipper-powered 3D printers.