Sony HT-A3000 Help Manual page 10

Network
You can perform streaming playback of music content or play music files stored on your PC with the speaker system by
connecting the speaker system to the same network as that of the smartphone, tablet, or iOS device.
What You Can Do by Connecting the Speaker System to a Network
Optional speakers
For the operations of the optional rear speakers and subwoofer, refer to their operating instructions.
For the supported optional speakers, confirm on the Sony website.
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