The Bluesound Node 2i was already a accomplished multi-room performer, and this latest update adds surround sound to its list of talents

Not satisfied with its prodigious multi-room expertise, Bluesound has now – via a firmware update – upgraded the Node 2i so it can be used within a wireless BluOS Home Theatre.
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https://www.trustedreviews.com/news/new-update-bluesound-powernode-2i-surround-sound-4016603