Insten Twin Remote Contol Charger Dock Compatible with Wii / Nintedno Wii U , Controller Charging Station with Two Backup Rechargeable 2800mAh Batteries , White Never run out of battery power when you are about to score the winning point. Package includes: 2 Ni-Cd Rechargeable battery; USB cable; Dual Remote Control Charging Dock. Dock both of your remote and plug it into any USB port. No need to remove the battery! High capacity battery that lasts 2~4 times longer than the standard AA batteries Compatible With Nintendo: Wii