Philips spa8140b/94 4.1 Channel multimedia speaker system Multimedia speakers Color: black Sensitivity 84 dB Cable length: 1.3m ; Frequency range: 20Hz-20KHz, Output power: 50 W, Power: 230V, 50 Hz, Signal/Noise ratio: > 60 dB ; Input sensitivity: 550 mV ; Impedance: 4 ohm ; Included Items: Remote control, User Manual, Warranty Card, 2 RCA to stereo-1 no. cable