Monophony IC,black plastic housing,black mesh fabric,no paint spraying,hi-fi,active speaker,high qulity. Mains AC Powered stylish designed 2.0 audio system for desktop audio solutions.No power required! - Well maybe just one USB wire. USB powered stylish designed 2.0 audio system for desktops and all portable device. An exotic sub-woofer housing with 'opera' house look and feel designed satellites wired to a 'red-halo' rotary volume control with integrated MP3-in and headphone-out jacks sets the visual and audio palette alight.main speaker:4Ω,5w,sub-speaker:4Ω,3w.double IC:2025+2822, 2.1 channel.