Virtual surround soundFor sound that feels like it surrounds you, the LG SL5Y 2.1 Wireless Sound Bar has DTS Virtual:X. Action films, dramas, and sports will feel all that more immersive as it lifts the audio overhead.And for true surround sound you can add optional SPK9-S wireless rear speakers (sold separately) to boost the sound power.Adaptive Sound ControlThere's no need to change sound presets each time you change the channel. The sound bar can automatically adjust the sound to suit what you're watching, so you get booming sound for action and clear dialogue for the news.High-Resolution AudioThe SL5Y isn't just for your TV. Listen to music from your smartphone with Bluetooth. Or delight your inner audio buff with High-Resolution Audio sound that'll make you feel like you're in the recording studio.