The Panasonic 5.1 Surround Sound Subwoofer SB-WA830 is a rectangular-shaped silver subwoofer designed specifically for Panasonic brand surround sound systems. With wired connectivity and a 5.1 channel system configuration, this subwoofer is perfect for enhancing your home audio experience. The model number SB-WA830 ensures compatibility and quality from the reputable Panasonic brand. Ideal for those looking to upgrade or repair their home audio setup, this subwoofer delivers powerful and immersive sound performance.