The HP Harman Kardon Computer Satellite Speakers & Subwoofer 5187-2105 is a portable speaker system designed for computers, laptops, and desktops. This system includes 2 rectangular-shaped satellite speakers in silver and dark gray color, along with a subwoofer for enhanced audio output. It is compatible with a universal range of brands and offers various audio inputs, such as a 3.5mm jack and stereo mini jack. The features of this speaker system include a volume on-off knob and wired connectivity, making it a convenient and stylish addition to any workspace. Turned them on but did not connect to computer. Includes cords and power source.