Pretty sure its the USB dongle that's wireless, if you follow the Onkyo link (although it's in jp) and scroll to near the bottom you can see the speakers appear hardwired.
I think it looks like a pretty awesome system.
Let the hive mind of Engadget get that for you.
"I am trying to configure out a really dumbed down and intuitive PC for my grandmother. She recently had a stroke and while she is under my care I would like to repurpose a laptop for her to surf and email her children. Anyone have any experience with what input devices and UI's are really understandable for the over 80 crowd?"
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