770 Watt Output Powerful 7.1.4 Channel High-Resolution Audio Soundbar with wireless Subwoofer Subwoofer for Deep and Thrilling Bass Ultimate Cinematic Surround Sound A New Dimension of Immersive Audio With Dolby Atmos Upgraded AI Sound Pro: Adaptive audio uses an upgraded algorithm to identify voices, effects, and frequencies then optimizes the sound by genre for a more immersive experience with every scene. LG Soundbars now have the compatibility to work with more AI services. You can play music, find answers, manage everyday tasks, and easily control smart devices with the platform of your choosing.