At only 2.75 ounces with batteries, this headlight uses (2) 1.5V AAA batteries for a combined performance at the top of the sub compact headlight category. The Enduro has been specifically engineered to minimize the weight and maximize run time. The light's optimized center of gravity provides maximum wearer comfort and stability during use and the integral hat clip allows the light to be attached to the brim of a hat or on the wearer's shirt or jacket without the need for the head strap. This headlight offers high and low lightning modes. Comes complete with a rubber/elastic combo head strap.