TOOGOO(R) 4 x Rechargeable Battery and Quad 4 Charger Dock Station Kit for Wii Remote Controller White 4 port remote control charging dock compatibile with Nintendo Wii remote controller batteries 4 Ni-Mh rechargeable batteries included; LED indicator lights glow to show charging status High capacity batteries last 2-4 times longer than the standard AA batteries Package Contents: 4 x Ni-Mh rechargeable batteries, 1 x Charging Station, 1 x USB cable