Whether you are on the water with 40 mph winds, or traversing the backcountry on foot having a whistle for emergency calls is essential. These whistles give off an authoritative sound that can be heard for miles over loud noises. Available: The Six-Function Whistle includes an LED light, compass, magnifier, thermometer, signal mirror and whistle all attached to a lanyard with a convenient clip for easy attachment. Batteries included. Safety Whistle is colored in bright orange for optimal visibility. It's attached to a lanyard with a breakaway snap closure for easy attachment to gear. International Safety Whistle and Morse Code is printed on the backer card (not shown).Note: For sanitary reasons, we are unable to accept returned whistles. Please be sure of your choice before ordering.