The dreamGEAR DG3DS4245 Power Case doubles the battery capacity for your 3DS giving you more play time. Insert your 3DS into the Power Case and plug in your original 3DS AC adapter to charge both the Power Case and the 3DS. Once your internal battery gets low, just flip the switch and you have instant power! The rubberized surface gives you a more comfortable feel during game play and the Power Case protects your 3DS from nicks and scratches. Re-energize your 3DS with the Power Case from dreamGEAR.