Microlab M850 40 Watt 2.1 Subwoofer Deluxe Multimedia Speaker for PC and Multimedia Entertainment Output power: 40 Watt RMS Power distribution: 2x 12 Watt + 16 Watt RMS Frequency response: 30 Hz - 20 kHz Tweeter driver type: 2x 2.5 Inches Tweeter rated power: 2x 10 Watt , 6 Ohm