2.0 STEREO SPEAKER WITH RGB BACKLIGHT Rated power: 2x 3W Frequency response: 150Hz-20KHz Impedance: 4? x 2 Drive unit: 2 inch x 2 Backlight: RGB Connectors: 3.5 mm jack (audio), USB (power) Size?72(W)*82(D)*120(H) MM Cable length: 1.1 M