To customers: life is full of surprises. Package Includes: 1 x Fishing Bite Alarm Item Name: Fishing Bite Alarm Material: ABS Batteries: 6F22 9V(Not Included) Size Details: Size: 12cm x 5cm x 4.5cm Specifications: The product adopts sound and visual alarm design, which will prevent you from missing any baited fish and make fishing easier. If you want a fishing bite alarm that is easy to install and operate, this one would be a perfect choice. 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,in weight, suitable for outdoor storage and use. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Wefor excellence. And hope you have a nice day!