3.1 Channel - Take your home entertainment to a new level with 3.1 channels-right, left, center and subwoofer. Dolby Audio - Never miss a single detail, no matter where you're watching. Crest Design - This soundbar features LG's new crest design that gives the soundbar a sleek and stylish look, with a metal grill that keeps out dust and debris. WOW Interface - Control your soundbar and your LG TV with one remote. AI Sound Pro - Hear clear vocals in live sports, thunderous bass in live music, and dynamic sound in action scenes. LG Soundbar App - Customize the 3-band equalizer settings of your soundbar and rear speakers in a few simple steps with the LG Soundbar App.