Speaker Edifier C6XD

5.1 multimedia speaker system with an external independent amplifier Optical audio input option for connectivity to consoles and media centers 3.5mm-3.5mm auxiliary and RCA-3.5mm auxiliary input options Additional 3.5mm Auxiliary input and Headphone output port on the side of the amplifier LED digital display for FM channel information, SUB/Front/Ce/Rear/Bass/Treble trimmer information, master volume level USB and SD Card audio input options with MP3/WMA audio file support Infrared remote control for volume, bass and treble adjustments, input selection, play mode, mute and standby. Volume dial, input selection, bass and treble adjustment options located on the amplifier inch silk dome tweeters, 3 inch midrange drivers and a 6½ inch bass driver, all magnetically shielded 100% MDF wooden enclosure for both satellites and subwoofer for enhanced sound performance Built-in universal power supply