The first thing that catches your eye about the I ball drum speakers is its innovative design. It looks very different from the conventional speakers and comes loaded with a lot of advanced functions. The stylish and innovative design of the speakers hosts the control for volume and bass adjustments. With USB connectivity, you can easily connect the speakers to any external device. USB connectivity also powers the speakers so you do not need any external power outlet. The panel of the speakers also has a control for volume adjustment. With standard audio jack, you can also connect your mobile and iPod with the speakers.