The Samsung HW-B400F/ZC is a 40W 2.0 channel sound bar built to replace thin, built-in TV audio. DTS Virtual:X widens the stereo image into a simulated surround field without adding speakers, and Bluetooth TV Control links the bar to the television wirelessly. 40W of stereo power in a straightforward 2.0 channel bar DTS Virtual:X produces a surround-style effect through processing rather than extra speakers This description was generated by AI and reviewed for accuracy.