Edifier USA M1550 5.1 Mini Home Theater Multimedia System Surround sound 5.1 multimedia speaker system Master volume control, green indicator, stand-by option, and line-out for headphone all included on wired remote controller. Wooden MDF subwoofer enclosure 3.5mm jacks accept both stereo input signal and 5.1 channel input signal 5.1 channel speaker RMS 10W+4W+3Wx4 Unique downward firing wooden sub-woofer and slim style satellites High performance price ratio and reliability Magnetically Shielded Satellites and Subwoofer