Model of Product: DHS-4200 LED backlight Supply of Power: DC5V/1A Interface: 3.5 mm USB and audio jack Energy Source Length of Line: 1.2 meters Power Rating: 2x3W Regularity Reaction: 150 Hz–20 kHz It is sensitive to 85dB±3dB. Impedance: 4x2 Speaker Dimensions: 52 mm 770g in weight