Specification: Sound-light alarm device. Portable and easily installed. The outer layer, sealed without bolt, is made up of sturdy and durable ABS. Usable with different kinds of rods in different terrain and weather. Power saving. The three batteries equipped can be in use for 1 or 2 years if the power is turned off when in no use. No damage to fishing line. It is very sensitive to fish that swallow the bait. This LED Light Alert is the ideal indicator for night fishing. LED Indicator: visible for night fishing. Small and exquisite design, easy to carry, easy to install. Type: Fishing Alarm Fishing Rod Category: Boat/Raft Rod Material: Plastic Position: Ocean Boat Fishing Battery: 3x LR44/AG13 Button Batteries Dimensions: 7.7cm x 5.5cm x 4cm/3.03" x 2.17" x 1.57" (Approx.) Note: Due to the light and screen setting difference, the item's colour may be slightly different from the pictures. Please allow slight dimension differences due to different manual measurements. Package Includes: 1 x Fishing Alarm