Can I use my voice to start a stream or group on a Play-Fi device that doesn’t have Alexa built in?
As of DTS Play-Fi software version 4.6.0.000, yes, you can start an Alexa stream on an indivdual Play-Fi product or a set that is grouped in a stereo pair. Multi-room groups is not yet supported, but you can still use the app to link the speakers together once the stream is started, and further voice commands will apply to the group.
This is what is known as the Works with Amazon Alexa functionality, which enables you to link your Amazon account to your supported DTS Play-Fi products, and command them from any product that has the Alexa Voice Services platofrm, such as an Amazon Echo or Dot. We're currently rolling this out to the DTS Play-Fi product family at large. See our main page on the subject for more details.