A. ADJUSTABLE SENSITIVITY: These electronic fishing bite alarms are designed to alert users when a fish is hooked. The sensitivity of the fishing alarms can be controlled by adjusting their angle, which may help to reduce the effects of strong currents and wind. When fishing with more than one rod, these alarms can be helpful in identifying which rod is getting a hit. They are well - crafted and have a nice style. B. LOUD AUDIBLE ALARMS: Once a fish bites, the fishing alarm will sound at an 80 - decibel volume to attract attention. Users may not miss a single fish even if they are a hundred meters away or busy with other things. Note: Volume is not adjustable. C. WIDE APPLICATIONS: The space of the fishing bite alarm is 0.4in/1cm. It can be used for many different types of rods, except for relatively thin ones. They are suitable for various fishing activities such as sea fishing, ice fishing, fly fishing, trout fishing, and pier fishing in different terrains. They can be a good gift option for fishing enthusiasts. They are highly wear - resistant and have good durability. D. Colour: Black. Material: ABS. Package Contents: 4 * Fish Bite Alarm. Only the above package content is included, other products are not. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement error is allowed to be +/- 1 - 3cm.