670W of power capability allows the sound bar to achieve higher volume levels without distortion 7.1.3 channel provides enhanced surround sound experience Wireless subwoofer and wireless rear speaker allow for flexible placement and easy setup Bluetooth and Wi-Fi connectivity provide reliable options for wireless connection Works with AirPlay 2 to allow wireless streaming of audio from various Apple devices WOW Orchestra combines the audio from your LG TV and LG sound bars for enhanced immersive experience (Only available on select LG TV and LG Sound bar models) WOWCAST enables wireless connectivity with your LG TV and allows for lossless multi-channel audio support WOW Interface (accessible through LG TV) allows for easy control of sound bar Required accessories (sold separately) HDMI or optical digital cable, depending on how you're connecting the sound bar to the TV