SIMPLE ELLIPTICAL STRUCTUREMetal and high quality plastics make it steady without vibrating sound. Black and silvery color and the blue oval lamp ring make speakers show the beauty of metal curved lines. Adopted the low-voltage digital power, the maximum power can be 5W x 2, ensure the sound clear, bright, rounded and thick. Small Body(3.94x2.76.2.95inch) with powerful audio. SUPERB SOUND QUALITYOutstanding bass quality, compared to other small speakers. Built-in bass diaphragm, closed Cavity and Low Frequency Aid Design to provide strong bass performance. In order to make up for the lack of bass of the Mini 2.0 speakers, the unique acoustic resonator structure using the enclosed low-frequency aid design makes the sound more penetrating and powerful. Note: Restricted to the small volume, bass effect still cant compare with big speakers and professional subwoofer.