ULTRA-LIGHT & COMFORTABLE: The headlamp is super light (only 45g) and compact (2.4 * 1.2 * 1.3 inch), letting you feel no pressure on wearing the head. The breathable and adjustable elastic headband is perfect for adults and children, keeps the lamp comfortable and stable on your head, even while running.^ SUPER BRILLIANT & ADJUSTABLE ANGLE: The brightness of 100 lumens offers visibility up to 60 meters. It can enlarge the lighting area compared to other lamp beads, providing excellent brightness for any nighttime activity. The beam angle of the headlight can adjust up to 60 degrees with easy up or down movement, allowing you to illuminate where you need it.^ USB RECHARGEABLE: With a built-in rechargeable 800mAh lithium battery, this powerful headlamp provides an illumination duration of up to 12 hours (at low light setting) or up to 5 hours (at high brightness setting) ). It only takes 2 hours to be fully charged via the USB port (USB Cable Included). The lifespan of LED lamps is more than 100,000 hours, no hassle of replacement.^ 5 LIGHTING MODES & MEMORY FUNCTION: Equipped with 5 lighting modes - WHITE BEAM: high, medium, low; RED BEAM: Stable, SOS in case of emergency. Memorize the last light mode used, you don't have to go through the other light modes. When the light is on in a specific mode for more than 4 seconds, the smart timer function allows you to turn off the light with one push of the button.^ IPX4 WATERPROOF: waterproof headlamp is suitable for indoors and outdoors, no matter what the weather is raining or snowing. So you can use it for night reading, dog walking, night fishing, hunting, jogging, cycling, camping, hiking, caving, DIY, night repair or even in emergency at home or at work.