Welcome to our store! 1. Sound and light alarm. The casing is made of durable plastic, saving energy, making it lightweight, portable, and easy to install. 2. 5 adjustable volume and tone levels, with red and green LED indicators, ideal for night fishing. 3. Compatible with conventional signal receivers, allowing the use of different types of fishing rod holders in various terrains and at different times. 4. Easy-to-use push-button on/off switch, equipped with high-quality speakers that deliver clear sound. 5. Audio-visual alarms prevent you from missing a fish bite, making fishing easier. Item Type: Fishing Alarm Material: Engineering Plastic + Stainless Steel Main Color: Black Model: 1375 Quantity: 1 Piece Battery: 1 Piece 6F22 Type 9V Dry Battery (Not Included) Application: Universal CN Spiral Interface, Suitable for All Standard EU Type Fishing Rod Holders LED Quantity: 1 Piece Green + 1 Piece Red LED Indicator Diameter: Approx. 2mm/0.08in Waterproof: Not Compatible Size: Approx. 12.8 x 6.5 cm / 5.0 x 2.6 inches Five-level volume control Five-level tone control 1 x Fishing Alarm (Battery not included) Customers are our priority. If you encounter any problems with your product after receiving it, such as damage or an incorrect quantity, please contact us immediately. We strive to provide you with the best service.