eFreesia 9V 1A AC Power Adapter for Casio AD-5 ADF AD-5MR LK-100, LK-110, LK-220, LK-230, LK-270, CTK-720, CTK-2000, CTK-2100, CTK-3000, CTK-4000, WK-110, WK-200, and WK-210 eFreesia Brand AC Adapter Eliminates the need for batteries Casio keyboard models: LK-100, LK-110, LK-220, LK-230, LK-270, CTK-720, CTK-2000, CTK-2100, CTK-3000, CTK-4000, WK-110, WK-200, and WK-210. 12 Months eFreesia Warranty