USB Charging: Built-in removable rechargeable LED light with a built-in USB port for convenient charging. Can be charged via any USB port: car charger, power bank, and computer; no need to buy or charge batteries or extra charging cables. Turn the light on and off with the touch of a button! One size fits all: Head circumference: 56-65 cm (22-25 inches). Unisex, ultra-soft material. Stylish beanie design with lighting to keep you warm in cold weather while enhancing your overall look. This beanie is elastic and fits most men and women. 3 Brightness Settings: Our LED light beanie has 3 modes to ensure clear visibility in the dark. The front light illuminates a distance. Lighting distance up to 9 meters. It projects focused light on the object you are looking at; suitable for various occasions: This warm winter beanie can be used for indoor and outdoor activities such as sleeping, walking the dog, cycling, skiing, snowboarding, running, camping, traveling, fishing, hiking, motorcycling, etc.