Never run out of battery power when you are about to score the winning point. Save money and protect the environment by using the rechargeable battery. High capacity battery that lasts up to 2 to 4 times longer than the standard AA batteries. Dock both of your remotes and charge by plugging into a USB port. No need to remove the battery! LED lights glow from the base of the dock station to show the batteries charging status. Package includes: 2 Ni-Cd Rechargeable battery, USB cable, Dual Remote Control Charging Dock, Accessory ONLY. Nintendo Wii Remote control not included.