Best answer by Airgetlam
There are no microphones on the PLAYBAR, so it can't accept a spoken command.
But generally speaking, when we're talking about integration, Sonos is talking about within the ecosystem, i.e. the software supports it. So, if it works with one device, it should probably work with all devices, it will just be that some (i.e. the Sonos One, the Beam) will be able to be spoken to directly, others can be controlled because they're in the ecosystem.