Easy To Install - You only need to clip it on the fishing rod and then wrap the fishing line around the alarm. Sound Notice - Sensitive electronic equipment with a loud alarm to notify you, when a fish bites or hits the fishing rod. Won't Damage Fishing Line - Small and exquisite design. Our device will not damage your fishing line. Fishing At Night - Thanks to the LED on this sensitive device, you will be able to fish at night in the complete darkness without any noise. You will be alarmed.