Built-in display screen plus multifunctional rotary knob, easy to adjust volume and check keyboard status instantly; Three-mode connection supports Bluetooth, 2.4G wireless and wired, freely switch multiple devices stably; Full hot swappable design fits 3/5 pin switches, convenient to replace switches without welding; Pre-lubed switches with gasket structure, bring soft creamy typing sound and smooth hand feeling; High-quality side printed PBT keycaps with rich RGB backlight, wear-resistant and stylish appearance