Inland Pro Sound 2000 Speaker: * Compatible with all PC sound cards and portable music devices * Magnetically shielded for monitor, drive and disk protection * Power on/off switch * Power indicator light * Headphone jack built-in * Volume control * 2" x 3.5" full range woofer * 6" speaker to speaker wire * 6" speaker to audio source cable * Cloth speaker grill * 100 Watt amplifier * Internal Amplifier 3.6W x 2 RMS * S/N 50 dB * Input sensitivity: 600 mV * Music power: 100W * 70 Hz-20 KHz frequency response