Edifier C2XD Black, 2.1/ 53W (35W+ 2x9W) RMS, External Amplifier, LED display, Audio in: Optical & 3 analog (2x AUX, RCA), headphone output, remote control, all wooden, (sub.6,5" + satl.(3"+3/4")), E.I.D.C. (Edifier Intelligent Distortion Control)