Highly Sensitive: The fishing alarm is designed to be highly sensitive and will not damage the fishing line. It is unaffected by external conditions such as wind or electrical interference. As soon as a fish bites the bait, the alarm will immediately alert you. The sound volume can be adjusted according to your preference.Fishing at Any Time: Equipped with LED lights, the alarm emits bright illumination for night fishing, making it easy to see in dark conditions. It is also suitable for daytime use, offering flexibility for fishing at any time.Powered by Battery: The device is waterproof and operates using three AG13 button cell batteries.Two Specifications Available: The turntable type has a shorter trigger stroke but requires more force to activate compared to the rocker type. The rocker type has a longer trigger stroke; due to the pendulum arm design and lever principle, it requires less force to trigger.Wide Application: Compatible with various fishing rods, especially sea rods with a diameter between 12-35cm. Easy to install and use. Suitable for sea fishing, ice fishing, fly fishing, bass fishing, trout fishing, kayak fishing, and dock fishing across different environments.Name: Fishing Electronic Sound Alarm Prompter Applicable Rod Diameter: 12-35cm (4.72-13.78in) Battery Requirement: 3 x AG13 button batteries (included) Features: Microcomputer-controlled circuit, three-color LED indicator, adjustable sound alert Color: Blue Material: Plastic Package Includes: 1 x Fishing Bite Alarm Note: The actual product color may vary slightly due to lighting and display differences. Measurement error is +/- 1-3cm.