Tonzo Industrial Co.Ltd., established in 1997, is a professional computer accessories manufacturer, keyboard manufacturer, mouse manufacturer, and speaker manufacturer. Its main products include computer mice, keyboards, and speakers . It also developped many new products, such as, computer keyboard, standard keyboard, wireless keyboard, multimedia keyboard, optical mouse, wireless mouse, mini mouse, gift mouse, computer mouse, 2.0 speaker, computer speaker, vibrating speaker and multimedia speaker to meet the growing needs in the world market.