Leave your hands free with the Streamlight Double Clutch USB Headlamp w/ 125 Lumens to hold tools and work on the task at hand. This headlamp engineered by the professionals at Streamlight features an adjustable elastic headstrap that also includes a rubber hard hat strap with a facecap which you can twist for easy functionality, even with gloves on. The Streamlight Double Clutch USB Headlamp w/ 125 Lumens also comes with a locking mechanism that opens easily to access the battery compartment for recharging/replacing batteries, yet keeps the body from popping open if dropped. The Streamlight Double Clutch USB Headlamp w/ 125 Lumens is topped off with a low-profile construction that optimizes center of gravity, provides maximum comfort and gives plenty of stability during use. Specifications for Streamlight Double Clutch Headlamp: Manufacturer: Streamlight Light Output: 125 lumens Features of Streamlight Double Clutch USB Headlamp: Facecap twists for easy functionality, even with gloves Facecap at center position for Off. Rotate 90° for On (spot or flood based on rotation direction) Double "tap" for intensity change; previous intensity is stored in memory Dual-fuel - Powered by USB rechargeable lithium polymer battery; also accepts three AAA alkaline or lithium back-up batteries Spot and flood beam patterns High or low lighting modes with previous mode memory IPX4; water-resistant; 2 meter impact resistance tested Includes USB cord, and adjustable elastic and hard hat straps; optional AC wall adapter available 60° tilting head Package Contents: Streamlight Double Clutch USB Headlamp,125 Lumens