Enjoy the ultimate home audio experience with beFree Sound’s 2.1 channel Bluetooth tower speaker system. This speaker system is sophistically designed, featuring a sleek look and smooth sound. With Bluetooth, usb, SD and FM radio capability, the system offers the best possible listening options for your enjoyment.* 8″ display size* 12 subwoofer* 1.5″ tweeter* 137″ speaker connector cord * unit option:10″*2* output power:100w*2* frequency response:40hz-20khz, * separation:≧50db, * s/n ration:≧75db* features: Usb/sd/fm/Bluetooth/optical/coaxial* remote sold in pair.