Amazon.com: Bowers & Wilkins Formation Bass Wireless Subwoofer (250W), Unique Side-Firing Design, Compact Cylindrical Look with Versatile Placement, Compatible with B&W Music App : Electronics
Bowers & Wilkins B&W 704 Bass Unit LF00010 | eBay
First Impression Review: B&W Formation Wireless Speakers Series - Formation Duo, Formation Wedge, Formation Bar, Formation Bass and Formation Audio | StereoNET United Kingdom