Items purchased at a Familiar store This is a security alarm with a simple design featuring the Familiar check pattern and Familiar-chan. It can be attached to a school backpack, and its cute design makes it suitable for everyday crime prevention for adults as well. 〈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