Hercules XPS 2.0 40 Slim is the perfect entry level 2.0 speaker on the market. With it"s exclusive design and a total peak power of 10 watts it stands to give the sound quality needed. The speakers have a headphone jack and audio input on the front and a master volume for easy control. Can be used with Mac, PC, MP3 players and other devices. A 2-year warranty is included and Tech Support can be reached at 1-866-889-5036