USB RechargeableThis hat with LED light provides a standard USB port for charging the battery. You can use it in a car charger, computer, and power bank. It can be used continuously for up to 2 hours or temporarily for more than 48 hours. 3 Brightness Levels & 4 Built-in LEDsThe hat with LED light has 4 built-in LED lights and 3 brightness levels. The brightness of the LED light can be seen from a distance of more than 40 feet to the touch. Polyacrylic Cap Wash & RemovableThe LED light is IP44 waterproof. Press the LED light to turn Remove and wash the cap. The hat is reversible. You can detach the LED light, flip the hat upside down, and put it on. Winter Warm Ultra Soft MaterialThis hat is elastic, suitable for most children or adults men and women, and suitable for heads of different sizes. is a perfect gift for Halloween/Christmas/New Year for...