The Harman Kardon HK695-01 Computer Speakers Pair with Volume Control Satellites are sleek black cube-shaped speakers made of plastic. These 2.0 channel speakers offer surround sound formats in 2.1/5.1 STEREO, with a power output of 30W RMS. With wired connectivity and a 3.5mm jack audio input, these Harman Kardon speakers, known for their high-quality audio and brand reputation, are a great addition to any computer setup for immersive sound experience.