The Frabill Arctic Siren tip-up makes running a tip-up line easier with the innovative siren mechanism that alarms when the tip-up flag is tripped. The sound is audible from 100 yards in typical weather conditions allowing you to multi-task. While fishing from a shelter you wont be constantly checking tip-up lines to look for flags. The Arctic Siren will audibly alert you when you have a fish on! On flag release the pin smoothly pulls out triggering an alarm and bright LED light that can be seen and heard from greater distance under night/low light fishing conditions.