Multifunctional OLED Smart Display and Knob The keyboard has a new built-in OLED screen and knob, displaying functions: battery power, WIN/MAC, wired/2.4G/Bluetooth mode, dynamic images. Knob functions: light brightness, volume adjustment, switching light modes Three Connection Modes Type-C wired, Bluetooth (3.0+5.0) and 2.4GHz available. Easily connect to devices within 10 meters seamlessly, and easily switch between three modes (buttons on the left side of the keyboard) to achieve efficient multitasking. Gasket Soft Elastic Structure The Gasket structural design combines flexibility with stability. This structure can ensure an extremely comfortable typing experience, minimize fatigue from long-term use, and provide a consistent and sensitive touch for each tap. Multi-layer Soft Elastic Filling Material Poron and silicone pads are added to the PCB and positioning plate to reduce the noise generated when the switch is tapped, ensuring a purer sound. Fully Compatible with Hot-swappable Switch Seats A simple and easy way to replace switches, compatible with almost all brands of 3pin/5pin switches, such as Gateron, Akko, Kaihua and other mechanical switches. Truly Customizable 16.8 Million Color RGB Backlight Preset 15 different RGB lighting modes, 7 different pure colors, 5 backlight brightness levels and breathing speeds.