There are smart speakers, which connect wirelessly to other devices, and then there’s the new era of smart speakers, designed to offer services through voice-controlled virtual assistants. Sonos, for a long time, was all about the former, having been a pioneer of high-quality, WiFi-connected speaker systems. Now it’s entered the next era with products like Sonos One and Sonos Beam, which work with Amazon’s Alexa and other virtual assistants.

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