Keychron K4 Pro QMK/VIA Wireless Mechanical Keyboard 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. An excellent solution for multitasking. You can connect the K4 Pro with up to 3 devices wirelessly via its stable Broadcom Bluetooth 5.1 for seamless multitasking across your laptop, phone, and tablet. Switch among them swiftly, and its fully compatible with both Mac and Windows. A reliable USB Type-C wired connection is also available when you need it. QMK/VIA means endless possibilities for a fluid workflow. 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).