What's the difference in range between Airport Express and Extreme? Walking in to a Apple premium reseller's store today I was told that there is no difference range-wise between Express (the June 2012 model) and Extreme.

True story?

Where can I get more detailed specs on the models? Apple's site isn't exactly thorough…
The Wireless specs are the same.

The Features of each one, however, are not. Here's a few differences:


Packaging (obviously)
USB connection: On Express, only printers work. On Extreme, Printers and External HDDs.
Airport Extreme is able to create two wireless networks (one regular, one guest). Apple site states it has a guest network.
Airport Express has a P2 connector for AirPlay audio.