Material: plastic 1. High-tech precision detection, flashing red light when the fish bites the hook, not letting of any chance of catching fish; 2. Ultra-high brightness display with a visual distance of 100 meters; 3, high brightness LED green light positioning display, staring at the eyes for a long time will not be tired; 4, diverse styles, suitable for a variety of fishing methods. 5. Ultra-long green light standby time-The battery can be used continuously for 60 hours' 6. Bring your own waterproof locking switch without removing the battery Specifications: 1. [Responsive] After the fish bites the hook, you will see this warning indicator light to give an alarm, and the indicator will light up to remind you that the fish is hooked, and it is a good assistant for fishing at night. 2. [Easy to operate] Clamp the fishing alarm on a fishing rod, and then put the fishing line through the knob. When catching fish, the light will come on. 3. [Easy to carry] The size of the fishing alarm is very small, only 4g. It is convenient for you to carry the fish bag with you and does not take up much space. 4. [Gift battery] This fishing alarm comes with a button cell, which can be used immediately after receiving the package. 5. [Long-lasting battery life] can be used for more than 300 hours. You don't have to change the battery for a long time. You can choose two colors. Package Included: 1* fishing hook alarm Note: White: the red light flashes slowly at rest, and the green light flashes after the fish bites the hook. Green: when the light is still, the red and green flash alternately after the fish bites the hook.