Deeper bass and clearer vocals are made possible with Bass Blast+. It features advanced EQ for perfect, customized sound. Easily connect your mobile devices via Bluetooth and enjoy your favorite music using the LG XBOOM LK72B. You can separately control the bass level of the music for a personalized listening experience. Just plug a USB memory drive or SD Card loaded with music into your LG XBOOM LK72B speaker system to enjoy your favorite music.