That is easy. It means there is one firmware update available for Ken's Airport Extreme Base station and one firmware update available for Ken's Airport Express.
Click on the icon for either Ken's Airport Extreme or Ken's Airport Express and it will open, tell you there is an update and walk you through the one step installation process. It will take a few minutes to download the update, copy the update to the Airport device and install it, and finally reboot the Airport device and bring it back on line.
Repeat the process with the other device.
Any Airport updates are strongly recommended.
