Bomaker engineer carefully upgraded the full range speakers, subwoofer and software. Thoroughly improved the loudness of the sound. No more tiny sound or lack of bass Ultra-slim sound bar with subwoofer provides 2X ultra-bass and crisp level than before One-button to select Treble/Music, Bass/Movie, Dialogue & Equalizer mode vie the included remote control! The treble and bass can be adjusted based on your preference Wireless subwoofer. Superior punchy bass No more cords from the subwoofer to the sound bar.