If it is wireless, power off the keyboard and remove the batteries. To clean the outside of your keyboard, use a lint-free cloth lightly moistened with water. Don't get moisture in any openings or use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide.f it is wireless, power off the keyboard and remove the batteries. To clean the outside of your keyboard, use a lint-free cloth lightly moistened with water. Don't get moisture in any openings or use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide.