75% LAYOUT - Crafted for productivity, the Keychron K3’s 75% layout is a compact version of tenkeyless layout. It allows users access to all the essential multimedia and function keys, but with a smaller footprint. ULTRA-SLIM - The redesigned low profile switch is 40% slimmer than conventional switches. Together with the streamlined aluminum body makes the Keychron K3 one of the thinnest and lightweight wireless mechanical keyboards in the world. UITABLE FOR ALL DEVICES - With a unique Mac layout, K3 has all necessary Mac function keys, while compatible with Windows. Extra keycaps for both Windows and Mac operating system are included. WIRELESS AND WIRED - Connect with up to 3 devices via Bluetooth and switch among them easily. With high reliable and broad compatibility Broadcom Bluetooth 5.1 chipset, the K3 is best to fit home, office and light gaming use while connecting with your smartphone, laptop and iPad. It also has wired mode with USB Type-C connection.