Gravastar review: Good built-in battery, impressive music playback
The speaker will go on sale from January 2019 on Zoeao's website.

On top, it has a touch-sensitive volume control slider and underneath is a USB Type-C port for charging. We though it sounded great too — it delivers deep bass with balanced treble and crisp vocals. The volume level is loud enough for use in a medium sized room. Since it uses Bluetooth 5.0, you can connect two Gravastar speakers to work in stereo mode if you like.
Meanwhile, the built-in battery is good for over 14 hours of music playback (we tested by connecting to an iPhone XS, played with volume at 70%) which is impressive. The speaker will go on sale from January 2019 on Zoeao's website.
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