With a stylish and appealing design, the Genius U115 is one of the best portable speaker sets in the market. It is light in weight which makes it easy to carry it from one place to another. The RMS output of the speakers is 1.5 watts for each satellite. The speakers come with a configuration of a 2.0 channel system and are powered by USB. The speakers play a clear sound even at low volumes and are the perfect option for using with portable devices like laptops and mobiles. With a standard audio jack, you can easily connect them to your mobile phones. The front panel of the speakers has the control for adjusting the volume.