Technical parameters:Output: 3Wx2 (RMS)Sensitivity: 500mVFrequency Response: 20HZ-18KHzS/N Ratio: 65dBisolated Rate: 45dBImpedance: 4ohmSpeaker unit: 52mmPower: USB5VFeaturesHigh fidelity soundExcellent sound quality processingPlug and playLine volume adjustment3.5mm audio interface