Fellowes, a global leader in mobile, computer and consumer electronics accessories, is dedicated to making todays technology work for you. PRODUCT FEATURES: 100% full-size keyboard in a compact, lightweight design; Ultra-thin design fits in your briefcase or pocket; Includes hot keys to provide quick program access; No batteries or extra cables required. This keyboard is designed for the following systems: Sony Clie NR, NX, SL, SJ and T Series. For a complete compatibility list please refer to the original manufacturers web site.