360 Spatial Sound Mapping : 360 Spatial Sound Mapping technology creates up to twelve phantom speakers from just four real speakers to give you most immersive and real surround sound Dolby Atmos : Feel the thrill of movies in stunning 7.1.2ch Dolby Atmos/DTS: X Sound Filed Optimization: Sound Field Optimization calibrates to your environment to provide the best sound Bravia Acoustic Center Sync : You'll hear dialogue from exactly where the character is standing in the scene. Action and sound are precisely aligned so your viewing becomes much more immersive. Built in dual Subwoofer : Deliver High Sound pressure for clear, deep bass Hi Res Audio: Immerse yourself in supreme music quality with Hi-Res Audio and 360 Reality Audio Optional Subwoofer and Rear Speaker: Customize your setup with two subwoofer choices and an optional rear speaker set 360 Reality Audio :Music comes to life with 360 Reality Audio Free Demo & Installation: Brand will contact for installation for this product once delivered.