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

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