Keychron Bluetooth mechanical keyboard

World's First Hot-Swappable Low Profile Optical Wireless Mechanical Keyboard. Connect the K3 to up to three devices, and swap between them seamlessly, with the latest Bluetooth 5.1 technology. Or plug in a USB-C and use a wired connection. The K3 is the world’s first hot-swappable low profile Optical switch keyboard, you can hot-swap every switch to customize your typing experience without soldering, just pop the switch in and it’s done.