OLED Smart Display and Knob with Multiple Uses The keyboard features a new built-in OLED screen and knob that shows dynamic images, wired/2.4G/Bluetooth mode, WIN/MAC, and battery power. Light brightness, volume control, and light mode switching are all knob functions. Three Modes of Connection Available in 2.4GHz, Bluetooth 3.0+5.0, and Type-C wired. To accomplish effective multitasking, simply switch between three modes (buttons on the left side of the keyboard) and connect to devices within ten meters with ease. Gasket Soft Elastic Construction Flexibility and stability are combined in the Gasket structural design. This design can reduce fatigue from prolonged use, guarantee a very comfortable typing experience, and give each tap a consistent, sensitive touch. Soft elastic filling in multiple layers The PCB and positioning plate are equipped with material poron and silicone pads to minimize