This is a rechargeable battery and cradle set for the Wii Remote. Simply attach the rechargeable battery and set the remote on the cradle for easy charging. The cradle is powered by USB, so you can charge it with any device that has a USB port, such as a game console or PC. This eliminates the need for disposable batteries, making it ideal for eco-recycling. The LED will turn from red to blue when charging is complete. (Click the image to see an example of use in a dark place) *Charging is not possible with the strap or remote cover attached. *Product contents: 4 dedicated batteries, charging stand, dedicated USB cable. *Comes in a simple package and does not include instructions. *The Wii Remote in the image is not included.