1. Material: plastic 2. Application: sea pole, long-distance casting, rock fishing 3. Alarm mode: sound + flashing red light 4. Power supply: 2 x AAA batteries (not included) 5. Soft adjustable tie strap + metal buckle, the combination of the two can prevent the alarm from falling into the water when the pole is lifted 6. Low power consumption, can be used for a long time after installing a battery 7. At the same time as the sound alarm, the light flashes, and it can be heard clearly even at a distance of 100 meters 8. The volume can be adjusted freely 9. No damage to the rod, no line, no influence on casting 10. Sensitivity 5-300g adjustment, pull wire loop alarm, fish flood more accurate 11. Belt length: 12.7 cm 12. Size: 8.5x3.5x4.5 cm 13. Weight: about 75 grams