Ansai Golf Heated Cart Seat Cover: 100% Polyester Imported Made of lightweight waterproof windproof fabric Optimum placement of two Steel alloy fiber heating elements offers you up to 20 hours of comfortable warmth on your seat for cold surfaces Carbolex shell Rain guard waterproof 3M Thinsulate insulation Rechargeable 7.4V 4.0Ah lithium-ion battery Comes with separate mini controller Lightweight construction LED power indicators Easy push button operation