20 pc speaker system stereo pc speaker colour black transmission mode cable analogue input 35mm jack input line in power rating 3 watt frequency response 120 20000 hz speaker system 20 system system active power supply usb nominal impedance 4 ohm suitable for desktop pc notebook speaker controls corded remote control feature volume control front dimensions 82 x 72 x 75 cm weight 052 kg front satellite weight 026 kg