Different rooms have different needs, so the dual-speaker design of the LG Sound Bar Flex enables it to be configured in a variety of ways. However you like to enjoy movies and music, this audio package delivers. For even greater versatility, one of the speakers in this LG sound system is equipped with a built-in rechargeable battery, allowing it to be placed and enjoyed just about anywhere. Enhance the home cinema experience without the clutter of unnecessary cables. LG Sound Sync technology links compatible LG televisions to the sound bar wirelessly, using Bluetooth.