Key Specifications/Special Features: A specially designed backlit keyboard with membrane, rigid and rugged, waterproof and washable, made of silicone Interchangeable 3-color backlight and 2-step adjustable brightness of backlight With keyboard main power and backlight on/off switch Conveniently cleaning of flat membrane Rubberized surface provides comfortable use of typing Compatibility: Microsoft Windows 7/Vista/XP/2000/ME/98 Language: all the languages compatible with