Bookshelves 200 Watts RMS 5.1 HTS With Bookshelves Centre Surrounds Speakers with AM/FM Tuner with 10" Subwoofer with Remote Imp 4Ohms Power Handling 200 Watts RMS/Channel Freq Response 38 Hz-18 Khz Sensitivity 91 db Back Bass Port 5" X 2 Woofer with Butyl Rubber Surround 1" Dome Tweeter Centre 4" x 2 Woofers with Butyl Rubber Surround Impedance 4 Ohms Power Handling 60 Watts RMS/Channel Freq Response 60 Hz-15 Khz Sensitivity 88 db 18" x 6.5" x 5.5" L X B X W Surround 4" Woofer with Butyl Rubber Surround Impedance 4 Ohms Power Handling 60 Watts RMS/Channel Freq Response 60 Hz-15 Khz Sensitivity 88 db 9.5" x 7" x 5.5" L X B X W Wall Mountable Subwoofer 10" 50 Watts RMS Active Subwoofer AM/FM Receiver Built in 5.1 Digital Amplifier Remote VFD Display 5.1 & 2 Channel Stereo Inputs 9.5" x 7" x 5.5" L X B X W