Our charging docks, designed with 4 charging ports and inbuilt with 4 independent intelligent circuits, which enable 2 remote controllers and 2 batteries to be fully charged about 2-3.5 Hrs simultaneously and safely. Comes with 4 Pcs 2800mAh batteries, it can last much longer than the standard AA batteries. Adopt ABS material, lightweight, abrasion-resistant and durable. LED indicators show its work status. Widely fit for Wii remotes and game lovers.