Keychron is the first all purpose wireless Mechanical Keyboard The K4-V2 features a compact full sized layout with a numberpad for maximum efficiency in the smallest possible footprint Use in Wired or Wireless mode. Features durable Gateron mechanical switches available in Blue (clicky), Brown (tactile) and Red (smooth linear) to meet your typing preference. Double Shot Keycaps shine through keycaps provide crisp legible legends in fully lit and dimly lit settings. These keycaps are made from ABS plastic and have a soft matte finish that is smooth but not slippery to the touch. Compatible with Mac OS, Windows, Linux and Android and includes swappable keys to match the key callouts for your desired operating system. White LED Backlighting - allows for crisp visibility and includes 15+ backlighting effects. Connect up to 3 Bluetooth devices and switch seemlessly between them, or connect in wired mode via USB-C connection. Long lasting 4000mAh battery provides up to 4 weeks of wireless power with backlights disabled. Adjust the typing angle with flip down rubber feet which provide superb grip on your desktop. Two-tone grey keycaps. Steepened keyboard angle for a more comfortable typing experience. Detachable Cable - Includes a detachable USB-C cable for easy transporation and replacement. Includes extra accent keys for customization Key remapping and programming available on 3rd party software