DESC: Cute and compact cube-shaped powered speaker delivers good audio quality with surprisingly big bass to pump up your portable audio sound. Less than 3.5 inches on each side, the Yamaha NXA01WH is perfect for use with iPod and other portable audio players. The SR-Bass (Swing Radiator Bass) technology boosts the bass sound. A single button control (power, mute, volume) is conveniently located on the top.