CTA Digital IDSRRG Rechargeable Grip for Nintendo DSi This rechargeable, retractable grip adds the feel and comfort of a full size controller to your DSi. The rechargeable battery allows hours of extended game play after your DSi battery runs out of power. This complimentary accessory extends horizontally to adapt to the width of your Nintendo DSi, securing it while giving the user complete comfort and control during use. To operate, insert the DSi unit into the grip opening, securing it to the fasteners. To power the DSi, slide and hold the switch forward on the back of the grip, pull the charging cable to its fullest extent, connect it to the unit and turn the power switch on. Located under the grip are two buttons, which will lengthen the width of the grip. Once finished, disconnect the cable from the unit and simply push the switch forward and the cord retracts right back into its compartment. To recharge the grip, insert a DSi charging cable into the cable slot, right by the retractable cable, and charge for 2 hours.