75% Form Factor MODULAR MECHANICAL KEYBOARD Customizable Multi-Function OLED Display, Wired & Wireless (BT + Strikespeed Wireless) Warm-changeable Retro Frosted Transparent Case with a rotating encoder knob for a PCB facing south. CHANGE Switch type: Gateron Pro V2 / Outemu switch Outemu Blue and Outemu Red (only in ABS version) are the colors. Gateron Pro V2 Brown (exclusive to PBT version), Gateron Pro V2 Yellow, and Gateron Pro V2 Blue 60 million keystrokes is the switch's lifespan. It is hot-swappable.