At least in theory these Samsung sound bars are supposed to adapt to the listening environment to more accurately render the intended surround sound. They also have various non-trivial inputs (including wireless ones) as well as support for additional real speakers and subwoofers which again might need changes for compatibility.
Of course they could be designed to be simpler and have whatever input device is used (e.g. the TV) handle fancy features like mobile phone support.
Of course they could be designed to be simpler and have whatever input device is used (e.g. the TV) handle fancy features like mobile phone support.