Simultaneous Dual-Band 802.11n Wi-Fi Base Station.
Some Wi-Fi devices use the 2.4GHz wireless band, including iPhone, iPod touch, and devices using 802.11b/g.
Other devices can use either 2.4GHz or the higher-speed 5GHz band, such as the latest 802.11n-based Mac computers and Apple TV and iPad.
Instead of choosing one of the bands, AirPort Extreme and Time Capsule now operates simultaneously on both bands, and your multi-band devices automatically use the best available band.
This means all your Wi-Fi devices get the fastest possible wireless performance and the best possible range.
To download the PDF 'Airport Extreme N Dual-Band Base Station Network'
Click on the image below, it will open in a new window in Safari.
Go to File > ‘Save As’ and download the PDF to your desktop.