Logitech LS11 Speakers. RMS rated power: 3W, Peak Music Power Output (PMPO): 6W, Total Harmonic Distortion (THD): 10%. Connectivity technology: Wired, Headphone connectivity: 3.5 mm. Dimensions (WxDxH): 85.2 x 81.7 x 162.8 mm, Audio output channels: 2.0, Satellite speaker frequency range: 0 - 1000 Hz