Color:Blue NightGear Visual Person Marker: The Visual Person Marker is rugged, easy to use and can be seen for over 3 Miles. With its dual functionality of flashing and steady modes, the Visual Person Marker lasts over 240 hours on a single battery. This is a popular kayak light, and also works great for hiking, camping, running, walking or racing through the woods on a mountain bike. The Visual Person Marker is designed to be a visual safety beacon, creating a visual alert to be easily seen. Whether you are trying to be seen by vehicles or construction equipment, the Visual Person Marker is the industry leading beacon for visual safety. This light is very popular in the following activities: Running at night Dog Walking at night Construction Work Railroad Safety Parachuting Fresh and Saltwater Diving Vehicle Distress Survival Training Used by all departments of the US Military for various non-combat activities Waterproof to 300 feet and almost indestructible, with an operating range of -40 to +50C, the Visual Person Marker is available several different versions to suit multiple applications. The Visual Person Marker comes standard with CR-2032 battery and locking belt clip. The Visual Person Marker base and lens are extremely high impact resistant polycarbonate and the ultra bright LED is rated for over 100,000 hours. The Visual Person Marker is waterproof to a depth of 300 feet (90 meters) and will work flawlessly in conditions from -40 to 122 0 F (-40 -50 0 C).