Sonos offers multiple speakers within its portfolio, but as great as many of them are, none are portable and none of them offer Bluetooth audio support. Instead, Sonos has focused on offering speakers designed for the home that use a mesh Wi-Fi network to talk to each other and require mains power.
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https://www.pocket-lint.com/speakers/news/sonos/148942-sonos-portable-bluetooth-speaker-release-date-features-specs-news