New, Unused - Security Alarm - Anshin Tentokun - Set of 2 Product Description: 【Features】 Safe for nighttime walks and traffic safety Can be attached to a school bag strap Easy battery replacement New type of hook that doesn't fall off Loud 93dB sound Bright 2000lux LED light Comes with a buzzer carrying sticker How to attach to a school bag: Tie the string to fit the size of the body Insert the belt hook Recommended by the Zenkoku Bohan Kyokai Rengokai (National Crime Prevention Association Federation) Excellent Security Alarm, No. 07S052 【Specifications】 Included: Shoulder strap with safety stopper Metal hook 4 button batteries Hook: New type of hook that doesn't fall off Packaging: Paper box The batteries included at the time of shipment are test batteries. Please be sure to replace the batteries when using. *The box will be opened and folded for packaging. Thank you for your understanding.