ADJUSTABLE SENSITIVITY: These electronic fishing bite alarms are designed to alert you when a fish is hooked. The sensitivity of the fishing alarms can be controlled by adjusting their angle, which helps to exclude the effects of strong currents and wind. When fishing with more than one rod, these are very helpful in knowing which rod has a bite. FINE WORKMANSHIP AND PERFECT STYLE LOUD AUDIBLE ALARMS: Once a fish bites, the fishing alarm will sound at 80 decibels to get your attention. You won't miss a single bite even if you're a hundred meters away or busy with other tasks. Note: Volume is not adjustable. WIDE APPLICATIONS: The fishing bite alarm clip opening measures 0.4 inches (1 cm), making it compatible with many different types of rods, except those that are too thin. Suitable for sea fishing, ice fishing, fly fishing, bass fishing, trout fishing, kayak fishing, and pier fishing in various terrains. A great gift option for fishing enthusiasts. HIGH WEAR-RESISTANCE AND EXCELLENT DURABILITY Color: Black Material: ABS Package Contents: 4 x Fish Bite Alarm Only the above package content is included; other products are not included. Note: Lighting and different display settings may cause slight color variations between the item in the picture and the actual item. Measurement may vary by +/- 1-3 cm.