USB Rechargeable This hat with LED light has a standard USB port for charging the battery. Can be used in car charger, computer and power bank. It can be used continuously up to 2 hours or temporarily for more than 48 hours. 3 Brightness Levels and 4 Built-in LEDs The hat with LED light has 4 built-in LED lights and 3 brightness levels. The brightness of the LED light can be seen from more than 40 feet away by touch. Polyacrylic Washable and Removable The LED light is IP44 waterproof, press the LED light to rotate Take off the cap and wash it. The hat is reversible, you can take off the LED light, turn the hat over and put it on. Winter warm ultra soft material This hat is elastic, suitable for most kids or adult men and women, and suitable for different size heads. is a perfect Halloween/Christmas/New Year gift for your family members, friends and anyone you love in cold winter. , partying, skiing, hiking, hunting, building, cycling, barbecuing, fishing or walking the dog.