Items purchased at a Familiar store Online exclusive This is a security alarm with a simple design featuring the Familiar check and Familiar-chan. Of course, it can be attached to a school bag, and due to its cute design, adults can also use it as a daily crime prevention measure. 〈Product Specifications〉 ・Output volume: Approximately 85dB ・Target age: 6 years old and up ・Weight capacity: 3kg ・Batteries: CR2032 type x 2 〈Size〉 ・Body length: Approximately 11cm ・Buzzer diameter: Approximately 4.5cm ・Buzzer thickness: Approximately 2cm