Keychron J9 QMK Wireless Mechanical Keyboard Switch Option:Red 4 GHz mode for ultra-fast

4 GHz mode for ultra-fast responsiveness

and users can hot-swap with Gateron low-profile MX mechanical switch in a breeze (for RGB Backlight Hot-Swappable Version only)

Each Keychron Low Profile Silent Mechanical Switch Set comes with 110 switches and the bottle

Golden-yellow

Keychron J9 QMK Wireless Mechanical Keyboard Switch Option:Red 4 GHz mode for ultra-fastKeychron J9 is an ultra slim wireless custom mechanical keyboard. It supports 2. 4 GHz, Bluetooth, and a wired connection. It allows anyone to master any keys or macro commands on its 75% compact layout through Keychron Launcher web app. Besides, it has included keycaps for both Windows and macOS, and users can hot swap with low profile mechanical switch in a breeze.