The Logitech Speaker System Z313. The easy way to kick back and enjoy your music. The convenient control pod makes it easy to control volume and even plug in your headphones. 25 watts (RMS) of power fills your room with big, balanced sound. The compact subwoofer fits into tight spaces, delivering deeper bass when you want to feel the beat.Subwoofer: 8.6 x 9 x 5.9″ (22 x 22.8 x 15cm), Satellites: 3.2 x 5.75 x 3.5″ (8.1 x 14.6 x 8.9cm)The control pod makes it easy to control volume and headphone controls.