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. Produces up to 70 lumens. The aluminum housing with Type II Military Spec anodizing helps make the light extremely durable and abrasion resistant. Includes removable USB cord, AC Wall Adapter, pocket clip and holster.