DreamGEAR DGWII-3119 is a Quad Dock that can simultaneously charge up to four Wii Remotes with batteries attached or four Rechargeable Batteries by themselves. It features an LED indicator that lights up blue during charging and flashes blue when the charge cycle is complete. The DreamGEAR DGWII-3119 can charge your remotes while your Wii console is powered ON or OFF, making it a convenient accessory for gamers who want to keep their controllers ready to play.