Rated Power: 2 * 3 W Response to frequency: 150 Hz–20 kHz Sensitivity: 3dB plus 85dB Drive Unit: 52mm; Impedance: 40*2 Attachment: 3.5mm audio connector Power source: USB power supply, DV 5V ==1A A cable Details: 1.4-meter cable 3.2 mm in diameter 482g in weight Measurements: 316*60*60 mm