Feature Lighting Modes. Press once: Up/down. Press twice quickly: Strobe. Long press: 100% light--80% light--60% light--40% light--20% light. Micro USB Port Charging: User-friendly design with SOS whistle for emergency needs, the micro USB port can support a variety of power supplies. charging methods. Zoomable: The night vision headlamp style is detachable and zoomable. Suitable for camping, hiking, cycling, climbing and other outdoor activities. Removable: The night vision headlamp style is removable. Which is suitable for camping, hiking, cycling, climbing and other outdoor activities. Specification Mode: Single press: Up/down. Press twice quickly: Strobe. Long press: 100% light-80% light- -60% light--40% light--20% light. LED bulbs: LED Charging time: 7-8H Working time: 4-6 hours Waterproof level: IPX6, daily waterproof headlight, waterproof rain Power Supply: 2*18650 Batteries Material: Aluminum Alloy Headlamp + Elastic Headband Package List: Package A: 1 * Headlight + USB data cable Package B: 1 * Headlight + USB data cable + 1 * 18650 battery Package C: 1 * Headlight + USB data cable + 1*18650 battery + 1* charging head Package D: 1* headlight + USB data cable + 1* 18650 battery + 1* charging head+1*car charger Package E: 1*headlight+USB data cable+1*18650 battery+1*charging head+1*car charger car+1*box