The BBX-500 is a portable amplified audio speaker system with dual 3 high frequency speaker drivers and a port tuned 5.5 woofer driver. It supports audio playback via USB and SD Card as well as Bluetooth connectivity and FM Radio. This unit also features RCA stereo line inputs and dual microphone inputs. Record your performances via its built in Record to USB/SD function. With an attractive LED display and illuminated Jog wheels that control volume and station this unit is a perfect sound system for any environment.