Microsoft is getting into the AI home assistant market by taking on Amazon's Echo and Google's Home.
Rather than design the hardware itself, however, it is adding its Cortana software to a speaker built by Harman Kardon.
A teaser video, posted to the official Windows YouTube channel, shows the voice-activated speaker responding to questions using Microsoft's smart assistant Cortana.
Microsoft also made the announcement at an event in San Francisco, but gave little else away.
The video's description simply says: "The new voice activated speaker by Harman Kardon, with Cortana - your personal digital assistant.
Amazon's Echo, Echo Dot and its Alexa software launched in the US last year and came to the UK in September.