Keychron K4 Pro: A fully assembled wireless Bluetooth/wired usb mechanical keyboard with the 96% layout, allows anyone to master any keyboard keys or macro commands through VIA, it has included keycaps for both Windows and macOS, and users can hot-swap with any MX mechanical switch in a breeze. With full QMK and VIA support: Simply connect the K4 Pro to your device with a cable, drag and drop your favorite keys or macro commands to remap any key you want on any system (macOS, Windows, or Linux). Hot-swappable: The hot-swappable sockets are mounted on the PCB and compatible with almost all the MX style 3pin and 5pin mechanical switches on the market (including Gateron, Cherry, Kailh, etc.), you can install or change the switches without soldering. Pre-installed the pre-lubed Keychron K Pro brown switch providing unrivaled tactile responsiveness. Upgraded Typing Experience: The added sound-absorbing foam, a thick silicone dampening bottom pad, and steel plate provide responsive fee