This sea rod holder type fishing alarm device is used for reservoir and coastal fishing, suitable for sea rods, casting rods, and rock fishing rods When a fish bites the hook and pulls the line or returns the line, it emits an audible and visual alarm, signaling to the angler to avoid When fishing, pay attention to the float to achieve one person managing multiple rods, seizing the perfect moment when fish take the bait Alarm size: 11.5*5*4cm Alarm shell color: Black Alarm light colors: red, yellow, blue, green, pink, white, six colors available Battery used: One 9V stacked battery (need to purchase by oneself) Net weight 67g/gross weight 80g PS: Due to the rejection of battery parts, all alarm devices sold in our store do not include batteries and need to be purchased with batteries Please inform in advance if shipping by truck is possible, but there is no guarantee of delivery time. Otherwise, self-prepared batteries will be sent All alarm systems sold in our store come with a warranty policy If there is an issue, no accessory fees or maintenance fees will be charged; you only need to bear the shipping cost If there are any quality issues with the product, please contact us within seven days after receiving it. Our store will bear the cost