Description Features:100% Brand New&High QualitySound-light alarm devicePortable and easily installedNo damage to fishing lineThe outer layer， sealed without bolt， is made up of sturdy and durable ABSUsable with different kinds of rod in different terrain and weatherThe three batteries equipped can be in use for 1 or 2 years if the power is turned off when in no use Power savingIt is very sensitive to fish which swallows the bait.This LED Light Alert is the ideal indicator for night fishingBattery: 3x LR44/AG13 button cell (included)Material: PlasticColor: BlackDimensions: Approx. 7.7 x 5.5 x 4 cm / 3.03 x 2.17 x 1.57 inch(L x W x H)Package Included:1pc x Fish bite Alarm1pc x Anti-slip mat3pcs x LR44/AG13 button battery