The MD12 speaker "acoustically connects" with your phone via Bluetooth or NFC to act as a speakerphone, and it can also play music. You can pair the speaker via NFC to any phone, not just a Lumia, by tapping on the side. There's also a 3.5mm port on the side, where you can plug in a cable to connect your phone or MP3 player.
Inside, there's a microphone so you can use it for conference calls or hands-free calling. The speaker is round with a grill on top, and has a single large power button on the front. You charge the MD12 via a micro-USB port and the battery lasts for up to 15 hours playing music continuously.
The bottom of the speaker has a special grippy texture so it won't slide around when you place it on a flat surface. That's important, because the MD12 has an attenuator that amplifies the bass when the speaker rests on a solid surface, such as a table or shelf.
In our tests, using the MD12 in a very loud room, we couldn't really gauge the audio and bass quality, but we could hear music over the background noise at the highest volume level.
The model that Nokia showed off at its press event sported the same bright red-orange color that's available for the Lumia 930, 630, and 635 smartphones. It also comes in neon yellow, bright green and white.
It'll cost $55 in the US and €39 (£32) in Europe when it goes on sale, sometime in June this year.