The product adopts sound and visual alarm design, which will prevent you from missing any baited fish and make fishing easier. It would be a good choice for you to purchase the product because it is easy to install and operate. Using plastic material, it is of good quality, and its volume, tone, and sensitivity are high. The length of the product is 12cm, the width is 5cm, the height is 4.5cm. It is only palm-sized, small and exquisite, lighter in weight, suitable for outdoor storage and use.