Great Polly Boruit 4 Mode Waterproof LED Headlamp, Hands-Free 2 Rechargeable Batteries, USB and Wall Charger for Camping, Hunting, Fishing, hiking and Cycling Ultra Brightness for long distances ,up to 100 yards visibility in the pitch black, with lifespan up to 100,000 hours and Brightness up to 1800 Lumens. Light weight, comfortable head unit to wear and easy to adjust. Adjustable base for 90 degree is provided for each head lamp, with up and down inclination. Package Includes Headlamp, 2 rechargeable 18650 batteries, Wall charger and Headlamp Dedicated USB Cable that Could Charge for the headlamp through connecting the mobile power bank or other electrical Device such as Computer or AC adapter. Multi-Function Capability, Hands-free ,Adjustable, Rechargeable, and 4 Modes : Low, Mid, High and Strobe Red light on the back of battery box to provides locational guidance for people behind you.