About this item Designed for Wii and Wii U Nintendo remote controller / Length of USB cord : 40.6 IN / Station Input voltage:DC 5V / Battery capacity : 2800mAh 4 Charging Port - Accommodating four Wii/Wii U remote controllers at a time. Once properly inserted, and turn on the switch, the unit begins to recharge, its full-charge, cut-off function protects batteries from being overcharged. Super Capacity - Come with 4 high-capacity 2800mAh Ni-MH rechargeable battery packs,up to 500 recharging times if using properly. No need to change the regular AA battery. Save money and protect the environment by using the rechargeable battery. Auto & Smart Indicator: Red means charging;Blue means fully charged. Package inculded: 1xCharger Dock+4xRechargeable Batteries+1xCable(Remote controller NOT included.) › See more product details