・Emits a loud 130dB sound to immediately alert of danger. ・Features an LED light for safety on night roads and in dark places. ・Lightweight and compact (approx. 6.5cm x 4cm). ・Set of 2 colors: cute purple and elegant silver. ・Uses 3 LR44 button batteries (replaceable). Thank you for viewing! This is a security alarm that uses sound and light to protect elementary school students on their way to school and women walking on dark roads. It can also be used as a bear bell or whistle. Simply pulling the cord triggers a loud sound of approximately 130 decibels, immediately alerting those nearby of danger. It can also be used to alert others when elderly people fall or suddenly feel unwell. Furthermore, it has an LED light to illuminate your surroundings even on dark roads, providing peace of mind. It's easy to attach to backpacks and bags, and it's small and light, making it easy to carry around. The compact size of approximately 6.5cm x 4cm makes it convenient to carry. It comes with a chain for easy removal. The colors are an elegant silver and a cute purple, sold as a set of two. The batteries are 3 LR44 button batteries, and they are replaceable. Perfect for daily crime prevention measures, such as for commuting to school or work, going to cram school, or evening walks. ◎Please confirm before purchasing◎ I originally bought this for myself, but I ended up not using it, so I'm putting it up for sale. Since it's been stored personally, there may be oversights or wrinkles/minor scratches from storage. ▶︎ This product was purchased overseas. Compared to Japanese products, there may be some imperfections in the sewing and finish. ▶︎ Shipping will be done with 【simple packaging】 and will be made as compact as possible. ▶︎ I have opened it once for inspection, but If there are any defects or concerns, please contact me 【before rating】. ▶︎ Size and weight are measured by an amateur, so there may be some errors. ▶︎ The color of the photos may look different depending on the lighting and the monitor you are using. I am currently decluttering and selling this before it becomes a burden in my closet. I hope it reaches someone who will enjoy using it. Please feel free to comment if you have any questions.