The Sony HT-S400 is a 2.1-channel sound bar with an included wireless subwoofer and S-Force PRO Front Surround, delivering 330W of clear, immersive sound. It connects through HDMI and Bluetooth, with X-Balanced Speaker Units for enhanced clarity. Included wireless subwoofer allows versatile placement and deep bass S-Force PRO Front Surround creates a wider, more immersive sound This description was generated by AI and reviewed for accuracy.