Item Type: Fishing Bite Alarm Light_x000D_Material: Plastic, Electronic Components_x000D_Battery Type: Button Battery (Delivered With Matching Battery)_x000D_Battery Model: LR41_x000D_Number Of Batteries: 3_x000D_Battery Capacity: 75mAh (25mAh/Piece) 1Material: Made of high quality plastic material, durable, corrosion resistant, suitable for various waters. 2Touch Sensitive Design: As long as a fish is hooked, the light will turn on, reminding you in time. 3Small and Light: It is not the size of a finger, just tuck it in your pocket and carry it at any time. It is the best choice for fishing enthusiasts. 4Applicability: Perfect for fishing in complete darkness, great for professional fishermen and fishing enthusiasts. 5Versatile: Can be used to hanging on docks, boats and attached to fishing lines, with bait attached to itself. It is suitable for night fishing, day fishing, lure fishing, deep water fishing, salt water fishing.