Keychron K4 MAX - The K4 Max is a wireless mechanical keyboard with a 96% layout. It supports 2.4 GHz, Bluetooth, and wired connections. Configurable through QMK and Keychron Launcher web app, it offers endless possibilities and enhanced productivity in your work and gaming! Program with QMK & Launcher - The open-source QMK firmware means endless possibilities for key remapping, macros, shortcuts, and more. Now you can easily customize each key with the Keychron Launcher web app. N-Key Rollover (NKRO) for both wireless and wired modes. Keychron Super Switch - Our exclusive Keychron Super switch adopts a new mold with unparalleled precision. Every switch is tested for pro-grade quality and has a lifespan of up to 50 million clicks, providing great reliability and high performance for long typing sessions. 2.4 GHz & Bluetooth Connection - Experience peak gaming performance on the fly with the 2.4 GHz wireless connection boasting a rapid 1000 Hz polling rate. For seamless multitasking across your computer, phone, and tablet, you can effortlessly connect the K4 Max via Bluetooth 5.1 to three devices. 4000 mAh Big Battery - The keyboard has enchanting White backlight with modern keycap legends to help you type in dim environments;The K4 Max can last up to 100 hours (at lowest brightness) with a 4000 mAh big battery, which is one of the biggest in mechanical keyboards. OSA Profile Double-shot PBT Keycaps - To further fine-tune your typing experience, the K4 Max comes with our unique OSA profile (OEM profile with spherical-angle) and double-shot PBT keycaps that aim to provide a more comfortable fingertip feel with excellent oil resistance for long-term use on the 96% layout. Keychron K4 Max QMK Wireless Custom Mechanical Keyboard, 96% Layout Tri-Mode Bluetooth 5.1/2.4G/USB-C Programmable White Backlight, Super Red Switch NKRO Gaming Keyboard for Mac/Windows/Gamers