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Hi Pichi, No, the AC power cord needs to be connected. You may refer to page 16 of this link: https://www.sony.com/electronics/support/res/manuals/4735/3ce14310a60b8e237c02440d9a8637e2/47358511M.pdf ~Ralph
Sorry, there was a problem. Please try again later.Yes, this speaker can work wireless without the wire.
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