* Product FeaturesDeep Bass Response in Conjunction with Crystal clear highs with High Performance Dual Internal Amplifiers !!* SpeciticationsOUTPUT POWER (PMPO)........... 300 Watts SUBWOOFER & SATELLITE FREQUENCY RESPONSE...............20Hz~20KHz DRIVE IMPEDANCE.......................4 Ohm HUM&NOISE............................1mV/10mV INPUT SENITIVITY..................100mV/1000mV DRIVE UNIT............5.5 inch WOOFER & 3.25 inch FR DIMENSION(WxDxH)mm...........180x235x280(106x140x165) 1) HIGH PERFORMANCE DUAL INTERNAL AMPLIFIER 2) BASS REFLEX SUB-WOOFER AND SATELLITE SPEAKER SYSTEM 3) COMPATIBLE WITH ALL LEADING PESONAL AND MICRO COMPUTER 4) MAGNETICALLY SHIELDED ENCLOSURES * Technoloty & CertificationQ,CE,UL,CUL,T APPROVAL CERTIFIED 2 YEARS WARRANTY * Countries Exported ToWORLD WIDE * Sales InformationTEL)82-343-423-0525 FAX)82-343-424-5602* Additional Information< ACCESORIES > SUBWOOFER & SATELLITE SPEAKER 1 SET AC/DC ADAPTOR 1 EA AUDIO CABLE 1EA INSTRUCTION MANUAL & WARRANTY CARD 1PC