Dual Alarm Design: The electronic fishing indicator can remind you by sound. You can adjust the volume of the ringer and even put it in silent mode. The siren is equipped with an LED light that gives a bright light when fishing at night, so it can also be used at night. High Sensitivity: Don't worry about the siren damaging the fishing line. It is very sensitive but not affected by external environment such as current and wind. The fishing siren will alert you as soon as a fish bites the hook. Easy to Install: You just need to clip this alarm to the pole, the adjustable shoulder straps fit different size poles. Then wrap the fishing line around the siren. Finally, adjust the sound and the power switch on the back. With Battery: Powered by three LR44/AG13 button batteries. Long battery life. If you often forget to turn off the switch, the battery will not degrade. Wide Application: Made of high quality ABS plastic, waterproof and durable. This alarm is suitable for different types of fishing rods and is very convenient to use. Suitable for sea fishing, ice fishing, fly fishing, bass fishing, trout fishing, kayak fishing and dock fishing in different terrains.