The Harman Kardon Soundsticks II Speaker Subwoofer is a 2.1 channel subwoofer designed for use with laptops and desktop computers. It features a sphere shape and a clear plastic material construction. The subwoofer has a RMS power of 10W and is equipped with Dolby Pro Logic surround sound formats, making it an ideal choice for enhancing the audio quality of your computer setup. It also has a USB connectivity option for easy integration with your devices.