The Harmon Kardon HP5187-2105 Comp Laptop Satellite Speaker is a 2.0 channel PC speaker with a sleek rectangular design in gray color. Made of plastic, this wired speaker unit from Harman Kardon features audio inputs of 3.5mm and connectivity options like a headphone jack and subwoofer output jack. It also includes features such as a headphone jack, AC power source, and a subwoofer jack for enhanced audio experience. Ideal for boosting sound quality on laptops and desktops, this speaker is a quality addition to any computer setup.