Rk908 Bluetooth Keyboard Manual | Link [best]

The keyboard is compatible with Windows, macOS, and Android. The manual details how to switch the function row keys to match the operating system:

Ensure you are using the provided USB-C cable. Some high-wattage laptop chargers (PD chargers) may not trigger the charging circuit on mechanical keyboards. Plug it into a standard USB port on your computer. Keys Not Registering rk908 bluetooth keyboard manual link

If the keyboard is behaving erratically, hold for 3 seconds. The lights will flash, and the keyboard will return to its default factory settings. The keyboard is compatible with Windows, macOS, and Android