Simple to apply and clean: press the button in the middle of LED light to adjust the brightness you ; cleaning, gently press the headlamp cap to the lamp on it, and then you can wash the beanie hat simply Easy to install and replace: if you have LED knit beanie hat, just the broken headlamp and replace with LED lamp; If your hats are without LED , you can cut the hats according to the shape of the light; Equipped with leather traps, you can sew the leather traps on your hat and install the ; This combination is suitable for anywhere you work lighting while freeing your hands USB charging: the beanie flashlights have standard USB, which can be through any standard USB port; You can use car charger, computer, socket and portable box to charge; The indicator turn red when charging and green when fully , easy and convenient to use Suitable for hats, complete combination for easy illumination in Suitable for many occasions: this LED rechargeable flashing light is suitable for different occasions,like walking , camping, hunting, shoveling snow, fishing, cycling, running, hiking, barbecue, car maintenance, etc.; Easy to match, the hands free flashlight can be applied in a of occasions