... 20kHzl Low harmonic distortion (<=1%THD)l Dimensions: 110(W) X135(D) X210(H)mml Product Condition: Brand ... makes all kinds of speaker,such as:speaker,mini speaker,portable speaker,USB speaker,2.1 muitimedia ... ,speaker wire,speaker unit,hifi speaker,portable laptop mini speaker,home speaker are on the way.5 ... .We can make professional speaker,mini speaker,SD card speaker,hifi speaker,USB speaker ...