Hot-swappable PCB: Special HOTSWAP PCB allows for the easy removal and replacement of mechanical switches for your own personal needs without the use of soldering or desoldering Use in Wired or Wireless mode Compatible with Mac OS, Windows, Linux and Android and includes swappable keys to match the key callouts for your desired operating system Features durable Gateron mechanical switches available in Blue (clicky), Brown (tactile) and Red (smooth linear) to meet your typing preference RGB Backlighting - allows for colourful and crisp visibility and includes 15+ backlighting effects. Sturdy Aluminum Structure adds stability weight and an aesthetically polished look to the design Connect up to 3 Bluetooth devices and switch seemlessly between them, or connect in wired mode via USB-C connection