Compact monitor speakers for your laptop or desktop. Active subwoofer offers some decent amount of bass as compared to some others that offers just the speakers only. The subwoofer is the main module here. It accepts a pair of RCA in (L/R) and then feeds the two monitor speakers. Volume control is found on one of the speakers. Right speaker has a very small dent on the front grille cover which is not really noticeable until up close and when you run your finger over the grille cover. All accompanying cables and outboard power supply included.