beFree Sound BFS-520 5.1 Channel Bluetooth Surround Sound Speaker System in Black and Blue

beFree Sound 5.1 Channel Bluetooth Surround Sound Speaker System in Black   Features Includes: Bluetooth, USB, SD memory card compatibility  FM Radio Built into Speaker System  Speaker System Output Power: 30W Sub-woofer, 10W per speaker x 5 (80W total)  Speaker System Frequency Response: 40Hz-20KHz  Separation: >50dB  S/N Ratio:>75dB  Speaker System Color: Black