【Super Bright COB Headlight】This bright COB headlight provides 260° wide-angle illumination, delivering maximum brightness to illuminate everything with an incredible field of vision. 【USB RECHARGEABLE & INDICATOR】This upgraded COB headlight has a rechargeable battery that can be charged via the included USB cable (battery not included). Its battery level indicator can remind you to recharge your headlights if they are dead. When charging, this indicator light indicates that the remaining power needs to be charged. 【ADJUSTABLE HEAD STRAP & COMFORTABLE FIT】Our mini COB LED headlight has an adjustable and elastic headband that can be fixed in place and fits all head sizes, also suitable for helmets, beanies, most baseball caps and beanies. 【LIGHTWEIGHT & IPX5 WATERPROOF】The headlight weighs only 80g, so you can feel your head without pressure and you will feel very relaxed. IPX5 water resistance protects your headlight from splashing water in all directions, so you don't have to worry