75% RGB Mechanical Keyboard Multi-function OLED Smart Display and Knob RGB Backlight Triple Mode + Multi-device Connection: This hot swappable keyboard supports 3 connection modes, including USB-C wired mode, 2.4G wireless mode and Bluetooth 5.1 mode. Up to 3 devices can be connected via Bluetooth at the same time and can be easily switched by the knob. Compatible with Win/Mac dual system, unlimited use. Hot-swappable Fast Silver Switch: The linear fast silver switch improves the accuracy and initial pressure of the switch, effectively prevents false touches, triggers faster, and has strong stability. It is an ideal switch for long-term gaming keyboard use and gamers.