2.1 & 5.1 Channel ExchangePowerful Bass & High Stereo SperationAll Function Remote ControlEthereal Touch Keystone DesignRMS：Woofer 30w Satellites 10w*5Speaker Unit: Woofer 5.25?satellites (3?1.5? x 5 Output Power: (Woofer) 30W + (Satellites) 10W x 5Size(WXDXH)mm: Woofer 160x325x300 Satellites 105 x 105 x160T.H.D.: 0.2% (1W 1HKz)