USB Rechargeable Headlight-USB charging cable enables you to recharge from any USB device, powered by 2* 18650 rechargeable batteries, could last working up to 4-6 hours under full charge). Zoomable headlamp brightness can be up to max 1000 lumens,Lifespan reach up to 100,000 hours.3-in-1| Multi-Function Capability; Can use as headlamp, Waist lamps or Desk lamps. Zoomable ,Adjustable ,Durable ,Hands-free ,Comfortable.3 Modes : Low ; High ; Strobe. You could simply press the power button to switch.90Rotation: 90 adjustable headlamp with elastic headband and lightweight battery box can be easily carried on the head. Can be also used as waist lamp. Zoomable headlight function can make you see a larger range brightness.Include Headlamp+ 2 rechargeable batteries+Car Charger+USB cable. IPX4 rated waterproof design withstands extreme weather conditions.Indoor & Outdoor Use: Ideal headlamp for adults & kids - running, walking, fishing, hunting, hiking, cycling, reading, caving, DIY projects, auto repair & emergency kit.