Rechargeable LED Light Winter Hat,Knitted Warm Cap, Comfortable Light up Beanie, One Size Grey One Size fits all, Unisex Knitted Hat with 4 Built-in and Removable Rechargeable SMD LED Light,providing 140 Lumens of 3 hours continuous use intermittent use Easy to Charge - Offer a standard USB port for charging battery, you can charge it in car charger, computer or portable power bank, NO BATTERIES TO REPLACE! Say goodbye to your batteries Easy 1 button controls LED lights - 3 brightness settings Unloading the car, Walking the dog, Making repairs, Night time walking, Running, Cycling, Camping, Fishing Easy to throw hat in the washer with this removable light