HIGHT SENSITIVE: Dont worry about the sirens damaging the fishing line. It is very sensitive, but it is not affected by the external environment such as electric current and wind. As long as the fish bites the hook, the fishing alarm will alert you immediately. DOUBLE ALARMING DESIGN: The electronic fishing indicator can remind you by sound. You can adjust the volume of the alarm, or even to silent mode. The sirens are equipped with LED lights, which can emit bright lights when fishing in the night, so there is no need to worry about not seeing fish in the dark waters. EASY INSTALLATION: You only need to clip this alarm on the rod, adjustable strap fits different rod sizes. Then wrap the fishing line around the alarm. Finally, adjust the sound and the power on/off switch on the back. WIDE APPLICATION: Made from high-quality ABS plastic, water-resistant and durable. The alarm is suitable for different types of fishing rods, it is very convenient to use for you.Suitable for sea fishing, ice fishing, fly fishing, bass fishing, trout fishing, kayak fishing and pier fishing in different terrain.