Say good -bye to tradilional acoustic. BATAB produt series are full-functional and delicate, conbining high techs. The front, middle and back "super man " sound boxes are of otrong sound tension by adopting high-energy magnetic of thuliums units of Rubidium, Iron Boron. And the sound tamber of front, middle back sound box are consistant. The sound is bypershere shook with devising satandard cinema bass sound box. The pcrfect combriation creates predominat movic effects. And is excellent for family use.