Wii Dual Controller Charging Kit - Memorex includes Dual Wireless induction charger and storage dock/station with Two Rechargeable Batteries for Two Remote controllers - Black Safely charges through controller sleeves, eliminating the need to remove protective sleeves to charge controller batteries 2 Ni-MH rechargeable battery included Charge indicator indicates when battery packs are charging or fully charged High quality, thoroughly tested Dual compatibility works with and without the MotionPlus sensor