This is a third party product, twin rechargeable battery pack dual charging station standard USB cable for Wii remotes.
High capacity wii rechargeable batteries can last 2 4 times longer than the standard AA batteries. It can provide enough power when you are about to score the winning point.
The charging station conveniently plugs into any standard USB Port, allowing for rapid recharging of all batteries simultaneously, no need to remove the batteries from the controllers.
LED light glow from the base of the dock station to show the batteries charging status. CE approved for stable output, fast charging and automatic protective to avoid overcharging.
Seller warranty Reliable lifetime warranty and free spare parts.