Upgrade your sound and your experience with this TAGWOOD LS-421B Multimedia Speaker System With Bluetooth. Youâll enjoy performance thatâs significantly better and smoother. You can access a world of entertainment at the comfort of your couch. Unique digital signal processing produces consistently clear, full sound at any volume. So youâll enjoy your favorite music, videos, and streaming content even more than before. Key Functions include Master Volume, Bass And Treble Control, Bluetooth, Fm Input, SD Card, USB Disk and Aux. It works as expected with nice clarity and a thumping bass. Comprised of exclusive technologies to deliver an epic performance, It has an acoustically perfected design - making it ideal for high-performance home audio configurations. It is the perfect combination of power, sophisticated and heart-pounding bass.