40 Watts of amplification, Harmon Kardon sound: A legacy of achievement. Easy-to-adjust satellite speakers. Eight full range transducers, 6″ (160mm) down-firing subwoofer with volume control. Touch controls for volume and mute. 1/8″ (3,5mm) stereo audio connection. Awe-inspiring industrial design. Harman truestream. Bluetooth audio streaming