The Stylus Pro USB is a compact pen sized, USB rechargeable, lithium ion battery powered flashlight designed for use in all markets. It features a tail cap switch for momentary or constant on operation, a pocket clip for convenience, and amazing brightness and run time for a light of its size. Up to 3.5 hours of run time at 90 lumens with a 58m beam and up to 1.5 hours of run time at 350 lumens with a 109m beam. Produces up to 70 lumens. The aluminum housing with Type II Military Spec anodizing helps make the light extremely durable and abrasion . Includes removable USB cord, AC Wall Adapter, pocket clip and holster.