Bluetooth-equipped sound bar speaker provides original surround sound technology that exploded onto scene in early 80s is now digital. SDA technology is what sets SurroundBar speakers apart from the crowd. They don’t depend on room acoustics or perfect placement to achieve more convincing surround-sound effects. Full range Dolby Digital N1 Gaming SurroundBar is first-ever sound bar designed and engineered in collaboration with Microsoft and brains behind incredible sound design of best-selling games like Halo and Forza. With customized, built-in gaming EQs for optimized audio, you will be living game like never before.