Rechargeable and Great Lamp Head Design : USB charging interface, USB charging cable enables you to recharge from any USB Device. Optical Convex Lenses, Zoom in for close work or zoom out for distance. Multiple Modes: The headlamp has 3 lighting functions, which can meet the needs of different occasions, such as night repairing, reading, walking, exploring, fishing. This bright LED headlamp is prepared to adjust to a full range of lighting needs. Long-lasting and Waterproof: Powerful LED technology, high lumen to light up your way, the headlamps flashlight last can last for 5-6 hours after full charged. The head lamps have IPX4 water resistant function for against splashing or spraying water from any angle. Rechargeable headlight have 90°tilt design, enables to rotate the headlamp to position the beam exactly where you want it.