The LG SH5 is a 320W, 2.1 channel Bluetooth soundbar with subwoofer that is also compatible with 4K televisions. It supports the Dolby digital surround audio format that provides real-life sounds, and the soundbar has Adaptive Sound Control (ASC). A differentiated, unique voice-enhancing technology that analyses vocal levels in real-time, ASC senses high local levels and then reduces bass power automatically to render movie dialogues crystal-clear.