Say goodbye to expensive batteries with the Mad Catz Power Solution for Nintendo Wii Remotes. Just remove the battery cover and batteries from your first party Wii Remote and replace them with the lightweight Power Solution for up to 15 hours of continuous energy. The advantageous SYNC. button pass-through enables synchronization without the need to remove the Power Solution and with the included charge cable, you can recharge via one of the Wii’s USB ports; or even your PC, when it’s most convenient for you. Compact and durable, the Power Solution is the ultimate choice in rechargeable energy for Nintendo Wii Remotes. Mad Catz promises innovative, quality products for all your gaming needs.