FS-4200ST Frisby Bluetooth Amplified Loud Indoor/Outdoor Speaker System Party Machine with Fm Radio, Usb, Sd Slots, Remote Control Complete mobile music center & amplified speaker system / 10" x 2 ( bass) speaker / 140 watt rms Stream music wirelessly from any Bluetooth enabled device Built-in digital am/FM radio and retractable antenna & USB & SD / mmc slots / aux audio input Remote control & treble, bass and echo to fine tune your sound Two audio inputs (standard 1/4") for wired microphones / rugged design with rubber corners