Altec Lansing 221 - speaker system - for PC

One 3-inch full-range driver per satellite speaker cabinet 4-inch, long-throw woofer 5 watts RMS for each satellite speaker cabinet and 10 watts RMS for the subwoofer (50 watts of total peak power) Magnetically shielded satellite speakers for placement near video monitors Color-coded cables Power on/off and volume controls Headphone jack Frequency response of 35 to 18,000 Hz 150 Hz crossover frequency Input impedance of more than 10,000 ohms Signal-to-noise ratio of 70 dB at 1,000 Hz Less than 0.35 percent total harmonic distortion at minus 10 dB full-scale input voltage Satellite speaker cabinets are 3.7"D x 3.6"W x 5.6"H Subwoofer cabinet is 7.7"D x 5.6"W x 9.6"HNote: Video game consoles may require an optional Y-adapter that is not included.