Keychron is the first all-purpose wireless mechanical keyboard The K4-V2 features a compact full-size layout with a numeric keypad 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 (linear smooth) to meet your typing preferences. Double Shot Keycaps shine through the keycaps and Provide crisp, legible legends in both fully lit and dimly lit environments. These keycaps are made of 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 exchangeable keys to match the key legends for your desired operating system. RGB backlighting provides crisp, colorful visibility and includes over 15 backlighting effects. A sturdy aluminium frame adds weight of stability and an aesthetically polished look to the design. Connect up to 3 Bluetooth devices and easily switch between them, or connect in wired mode via a USB-C connection. The long-lasting 4000 mAh battery provides up to 4 weeks of wireless power with the backlight off. Adjust the typing angle with folding rubber feet that provide excellent grip on your desk. Two-tone gray keys. Reinforced keyboard angle for a more comfortable typing experience. Detachable cable - Includes a detachable USB-C cable for easy transport and replacement. Includes additional accent keys for customization Remapping and key programming available on third-party software.