The Edifier M2280 2.0 Speakers Black is a compact speaker set for on your desk. The set consists of 2 speakers with their own amplifier. This ensures a good distribution of the audio signal. You can use the buttons on one of the speakers to adjust the volume and to turn off the speakers afterwards. You'll be able to keep the USB ports on your computer free, because the Edifier M2280 is connected with a power cable.