This charging dock allows you to play games for hours. You can charge two Wii remotes simultaneously, and the charging cable connects directly to your Wii for easy use. These rechargeable batteries last for many uses and are perfectly compatible with Nintendo Wii remotes. Includes two fast-charging 500mAh Ni-Mh battery packs that fit your Wii remote. Charge via the USB port on the back of the Wii or from a computer. The LED charging indicator lights red during charging or blue when fully charged. Two colors to choose from: White (as shown in pictures). 100% new and high quality. Specifications: Input voltage: DC 5V. Output voltage: DC 2.8V2. Output current: 350mA min2. Battery: 2 pcs 500mAh Ni-Mh batteries (included). Dimensions: 5.2*2.35*1.45 inches/ 13.21*5.97*3.68 inches (approx). Package content: 1*Dual Charging Dock for Wii Remote. 1*USB Charging Cable. 2*Rechargeable Batteries. Note: 1, The real color of the item may be slightly different from the pictures shown on the website caused by many factors such as brightness of your monitor and light brightness. 2, This listing is for a charging dock only, Wii remote and other accessories are not included.