Our remote charging docks, designed with 4 charging docks and built with four independent intelligent circuits, allow 4 remote controls to be fully charged in about 1-3 hours simultaneously and safely. Equipped with 4 x 2800mAh batteries, it can last much longer than standard AA batteries. Uses ABS material, lightweight, wear-resistant, and durable. Wide compatibility with Wii Nintendo remotes. Convenient, efficient, and easy to use. Perfect for Nintendo Wii remotes. Perfect design to charge 4 controllers at the same time. Matched with 4 large Ni-MH batteries, easy and convenient to use. LED light displays the charging status of the batteries. Red light indicates charging, blue light indicates fully charged. The charging cable can be connected to any USB power for charging. After full charge, it will automatically shut down. No need to worry about overcharging. Ensure the remote control is placed correctly. Place the charging station on a flat surface before charging. Please note that the remote control may be difficult to connect to the charger if the surface is not balanced. Accessories ONLY. Remote control is not included. LED indicator LED light displays the charging status. Charging: Red light on Fully charged: Blue light on Package Contents 1 Charging Dock 4 x Rechargeable Batteries 1 x Cable