Kisonli L3030 Computer Speaker...

Product Description Power: 5W Frequency response: 20Hz – 20KHz S/N Noise Compression Ratio: 58dB Impedance: 4Ω Distortion: 80Hz-20KHz 1% Connector: 3.5mm jack and USB Volume control button right on the speaker wire Power supply: USB banned directly on laptop or phone charger Color: 2 colors black and red