The streamlined Osaki Karaoke Soundbar offers non-stop, surround sound music with its Front surround technology and delivers theatre-like sound. It has 60W-120 W Music power of sound out that gives an amplifying sound effect with crystal clear clarity. The Karaoke function with mic input lets you enjoy your parties with your group of pals. You can attach any subwoofer with it if required. Power output: Subwoofer 30W, L/R Channel: 2x15W Total 60W RMS -120 W Music power. Has provision to attach active Subwoofer but its internal Built in Sub woofer is enough for most applications Karaoke function with mic input is fun entertainment for Birthday parties, home entertainment or even satsang gatherings Can be used for 8 Hours very much on a daily basis without any hearing fatigue.