Sonos SUB
A wireless Subwoofer
Screenshots
Hunter's comment
With the new SUB Wireless Subwoofer you can add a deep and bottomless quality sound to your Sonos Playbar to enjoy a rich audio experience.
With this powerful device, you will not only hear but also feel every shred of power chord.
The SUB is capable of adding some astonishing bass to your favorite songs with the slightest buzzing due to force-cancelling design that cancels any vibration.
Link
https://www.sonos.com/en/shop/sub.html
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Hunter: 
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