Product size about : 2.9*2.5*1.7*1.1cm/1.14*0.98*0.67*0.43'' Product color: As shown in the figure Battery: RC1220 Product material:ABS product features: smart sea fishing rod alarm light is designed to be installed on the tip of your fishing pole, featuring a white mushroom - or gourd - shaped design that is both eye - catching and functional. It has intelligent sensing functionensuring you only get alerted when there's a real bite, so you won't be bothered by unnecessary notifications. alarm light offers red - green flashing mode and also has a long - lasting bright option. It uses a CR1220 battery, with a long - bright battery life of about 200 hours and a red - green flashing visibility distance of approximately 100 meters. unique card foot design allows the alarm light to be firmly attached to the fishing rod tip. You can cast your line freely without worrying about the light flying off during the cast, providing great stability. also a green - colored variant. It remains off during normal times and flashes red and green alternately when a fish bites, reminding you to reel in the catch. It has a super long battery life of up to 300 hours and a visibility distance of 100 meters. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can contact us at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1/10 pc Fish electronic sensor