Upgraded Typing Experience: Redesigned from the inside out with screw-In PCB stabilizers on "big keys", added sound-absorbing foam, a thick silicone dampening bottom pad, and steel plate provide responsive feedback and a peaceful sound, while added weight in the aluminum frame will enhance the stability. *Other plate materials are available to buy separately. Bluetooth 5.1 Wireless & Wired - Ready for multitasking. You can connect the K12 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 it’s fully compatible with both Mac and Windows. Hot-Swappable with MX Mechanical Switch: The hot-swappable sockets are mounted on the PCB, so you can hot-swap every switch on the K12 Pro with almost all of the 3pin and 5pin MX style mechanical switches on the market (including Cherry, Gateron, Kailh, Panda, etc.) without soldering. You can customize your own typing experience in seconds. Program any Key with QMK/VIA: Anyone can master any keys, macro commands or combination keys through VIA with ease. Simply connect the K12 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). *Note: User can remap a key on wired mode only. Once it's done, the keymap will work on both wireless and wired modes. Keychron K12 Pro QMK/VIA Wireless Mechanical Keyboard allows anyone to master any keyboard keys or macro commands through VIA, users can hot-swap with any MX mechanical switch in a breeze. Together with our signature features and upgraded typing sound, the K12 Pro is advancing the typing experience to an entirely new level with endless possibilities.