Sound Alarm - A sensitive device for fishing, the alarm will notify you once the fish bites LED Indicator - When the fish bite, the bright blue LED light works at the same time. It is design for night fishing Adjustable alarm sound, no damage to the rod, not fall off the rod Exquisite design, easy to carry, easy to install, easily attaches to most fishing rods Perfect for night and day fishing, especially in complete darkness, this electronic detector can be even more valuable since it is not only emit sound but also turn on blue light when fish strike or run to let you know Bite Alarm Fishing Rod Sensitive Electronic Detector Fish Finder Adjustable Alarm Sound with LED Indicator for Sea Nighttime Fishing Fisherman Amateur Beginners Features:< /span> Material: ABS plastic Color: Black Weight: 50g/pack Dimensions: 2.56" x 2.17" x 1.18" < br> Package: 3 x Fishing Rod Alarms (3 pcs LR44 batteries for each alarm included) Extra 10pcs LR44 batteriesSold by Briday Store