Dell Stereo Soundbar – AC511M offers clear stereo sound, allowing you to enjoy audio on your favorite games, music and movies, without sacrificing desk space. An included soundbar mount offers easy attachment to the monitor, without losing desk space or affecting monitor adjustability. The sound belies its size. Your music comes through crisp and clear. Games and movies are a whole new experience. For private listening, the Dell Stereo Soundbar also includes a convenient headphone jack.he Dell USB Soundbar is simplicity itself. No extra software. No power cord. No batteries. Just plug into an available USB port and enjoy the rich stereo sound.