Edifier R1100 2.0 Studio Bookshelf Speakers - Black - Total Power Output: RMS 21Wx2 (DRC ON) - Signal-to-Noise Ratio: 85dBA - Distortion: =0.5% - Frequency Response: 65Hz-20KHZ (±6dB) - Input Sensitivity: PC 700mV±50mV Aux 550mV ± 50mV - Adjustment: Volume, bass and treble adjustment - Speaker Dimension: 140mmx226mmx197mm - Input Type: RCA – 3.5mm Auxiliary, RCA - R1100-BLACK - 12 Months Limited Warranty