Includes one Nintendo 3DS Charging Cradle with AC Adapter: Keep your system fully charged and ready to go with the Nintendo 3DS charging cradle and AC adapter. The cradle works as a convenient stand for holding the Nintendo 3DS system?and the adapter recharges the battery pack even while you play. When not in use, you can put the Nintendo 3DS system in Sleep Mode and still allow communication using features such as SpotPass?. The AC adapter is also compatible with the Nintendo DSi? and Nintendo DSi XL? systems. The charging cradle is only compatible with the Nintendo 3DS system.